Gang members fatally shot five people and injured seven others in Haiti's capital in a surprise attack, authorities said Thursday.

No one has been arrested following the shooting that occurred late Wednesday in the southern neighborhood of Carrefour-Feuilles.

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An injured woman is tended too at the General Hospital emergency room after she was wounded in a hail of bullets, in Port-au-Prince, Haiti, Thursday, April 25, 2019. The woman was lightly wounded last night when armed men opened fire into a crowd, killing several people in the Carrefour-Feuille district of Port-au-Prince. (AP PhotoDieu Nalio Chery)

Gang members fatally shot five people and injured seven others in Haiti's capital in a surprise attack, authorities said Thursday.

An injured man sits in pain after receiving treatment for a gunshot wound, at the General Hospital emergency room, in Port-au-Prince, Haiti, Thursday, April 25, 2019. The man was wounded last night when armed men opened fire into a crowd, killing several people in the Carrefour-Feuille district of Port-au-Prince. (AP PhotoDieu Nalio Chery)

Police said officers exchanged gunfire with suspected gang members when they arrived to pick up the bodies on Thursday morning.

Jean Renel Joseph is tended too at the General Hospital emergency room after he was shot, in Port-au-Prince, Haiti, Thursday, April 25, 2019. Renel Joseph was shot last night while sitting with his friends near his home. Armed men open fire into the crowd and killed close to 9 people in the Carrefour-Feuille district of Port-au-Prince. (AP PhotoDieu Nalio Chery)

Jean Renel Joseph is tended too at the General Hospital emergency room after he was shot, in Port-au-Prince, Haiti, Thursday, April 25, 2019. Renel Joseph was shot last night while sitting with his friends near his home. Armed men open fire into the crowd and killed close to 9 people in the Carrefour-Feuille district of Port-au-Prince. (AP PhotoDieu Nalio Chery)

EDS NOTE: GRAPHIC CONTENT - Morgue workers transfer a body of a man that was shot to death, to the Zenith morgue in Port-au-Prince, Haiti, Thursday, April 25, 2019. The man died while in emergency surgery at the General Hospital, after he was shot last night when armed men open fire into a crowd and killed several men in the Carrefour-Feuille district of Port-au-Prince. (AP PhotoDieu Nalio Chery)

EDS NOTE: GRAPHIC CONTENT - Morgue workers transfer a body of a man that was shot to death, to the Zenith morgue in Port-au-Prince, Haiti, Thursday, April 25, 2019. The man died while in emergency surgery at the General Hospital, after he was shot last night when armed men open fire into a crowd and killed several men in the Carrefour-Feuille district of Port-au-Prince. (AP PhotoDieu Nalio Chery)

Berlin Sylveste is tended too at the General Hospital emergency room after he was shot, in Port-au-Prince, Haiti, Thursday, April 25, 2019. Sylveste was wounded last night when armed men open fire into a crowd, killing several people in the Carrefour-Feuille district of Port-au-Prince. (AP PhotoDieu Nalio Chery)

Berlin Sylveste is tended too at the General Hospital emergency room after he was shot, in Port-au-Prince, Haiti, Thursday, April 25, 2019. Sylveste was wounded last night when armed men open fire into a crowd, killing several people in the Carrefour-Feuille district of Port-au-Prince. (AP PhotoDieu Nalio Chery)

Port-au-Prince Police Commissioner Joel Casseus told The Associated Press that four people died at the scene and a fifth at the hospital. It is unclear what prompted the shooting.

An injured woman is tended too at the General Hospital emergency room after she was wounded in a hail of bullets, in Port-au-Prince, Haiti, Thursday, April 25, 2019. The woman was lightly wounded last night when armed men opened fire into a crowd, killing several people in the Carrefour-Feuille district of Port-au-Prince. (AP PhotoDieu Nalio Chery)

An injured woman is tended too at the General Hospital emergency room after she was wounded in a hail of bullets, in Port-au-Prince, Haiti, Thursday, April 25, 2019. The woman was lightly wounded last night when armed men opened fire into a crowd, killing several people in the Carrefour-Feuille district of Port-au-Prince. (AP PhotoDieu Nalio Chery)

Police said officers exchanged gunfire with suspected gang members when they arrived to pick up the bodies on Thursday morning.

Authorities urged people to contact police if they had any information about the incident as newly appointed Prime Minister Jean-Michel Lapin promised to take unspecified action.

"What happened...is unacceptable," he said. "We send our sympathies to everyone that has been a victim of the state of insecurity that has been developing in the country for a long time."

An injured man sits in pain after receiving treatment for a gunshot wound, at the General Hospital emergency room, in Port-au-Prince, Haiti, Thursday, April 25, 2019. The man was wounded last night when armed men opened fire into a crowd, killing several people in the Carrefour-Feuille district of Port-au-Prince. (AP PhotoDieu Nalio Chery)

An injured man sits in pain after receiving treatment for a gunshot wound, at the General Hospital emergency room, in Port-au-Prince, Haiti, Thursday, April 25, 2019. The man was wounded last night when armed men opened fire into a crowd, killing several people in the Carrefour-Feuille district of Port-au-Prince. (AP PhotoDieu Nalio Chery)

Jean Renel Joseph is tended too at the General Hospital emergency room after he was shot, in Port-au-Prince, Haiti, Thursday, April 25, 2019. Renel Joseph was shot last night while sitting with his friends near his home. Armed men open fire into the crowd and killed close to 9 people in the Carrefour-Feuille district of Port-au-Prince. (AP PhotoDieu Nalio Chery)

Jean Renel Joseph is tended too at the General Hospital emergency room after he was shot, in Port-au-Prince, Haiti, Thursday, April 25, 2019. Renel Joseph was shot last night while sitting with his friends near his home. Armed men open fire into the crowd and killed close to 9 people in the Carrefour-Feuille district of Port-au-Prince. (AP PhotoDieu Nalio Chery)

EDS NOTE: GRAPHIC CONTENT - Morgue workers transfer a body of a man that was shot to death, to the Zenith morgue in Port-au-Prince, Haiti, Thursday, April 25, 2019. The man died while in emergency surgery at the General Hospital, after he was shot last night when armed men open fire into a crowd and killed several men in the Carrefour-Feuille district of Port-au-Prince. (AP PhotoDieu Nalio Chery)

EDS NOTE: GRAPHIC CONTENT - Morgue workers transfer a body of a man that was shot to death, to the Zenith morgue in Port-au-Prince, Haiti, Thursday, April 25, 2019. The man died while in emergency surgery at the General Hospital, after he was shot last night when armed men open fire into a crowd and killed several men in the Carrefour-Feuille district of Port-au-Prince. (AP PhotoDieu Nalio Chery)

Berlin Sylveste is tended too at the General Hospital emergency room after he was shot, in Port-au-Prince, Haiti, Thursday, April 25, 2019. Sylveste was wounded last night when armed men open fire into a crowd, killing several people in the Carrefour-Feuille district of Port-au-Prince. (AP PhotoDieu Nalio Chery)

Berlin Sylveste is tended too at the General Hospital emergency room after he was shot, in Port-au-Prince, Haiti, Thursday, April 25, 2019. Sylveste was wounded last night when armed men open fire into a crowd, killing several people in the Carrefour-Feuille district of Port-au-Prince. (AP PhotoDieu Nalio Chery)