Hong Kong police say they have made 6,022 arrests and fired nearly 16,000 tear gas rounds during six months of anti-government protests that have shaken the city.

Police say the arrests included 11 people detained in raids over the weekend that netted a pistol and other weapons. Police suspect the weapons were intended for use during a demonstration attended by hundreds of thousands of peaceful marchers on Sunday.

Police also arrested 12 people on Monday suspected of preparing gasoline bombs.

A worker cleans up a vandalized wall Monday, Dec. 9, 2019, in Hong Kong. Hundreds of thousands of demonstrators crammed into Hong Kong's streets on Sunday, their chants echoing off high-rises, in a mass show of support for the protest movement entering its seventh month. (AP PhotoKiichiro Sato)

A worker cleans up a vandalized wall Monday, Dec. 9, 2019, in Hong Kong. Hundreds of thousands of demonstrators crammed into Hong Kong's streets on Sunday, their chants echoing off high-rises, in a mass show of support for the protest movement entering its seventh month. (AP PhotoKiichiro Sato)

Police said they have also fired 10,000 rubber baton rounds during the six months of protests and that 493 officers have been injured.

Police guard in front of a bus stop Monday, Dec. 9, 2019, in Hong Kong, the morning after hundreds of thousands of demonstrators crammed into Hong Kong's streets, their chants echoing off high-rises, in a mass show of support for the protest movement entering its seventh month. (AP PhotoVincent Thian)

Police guard in front of a bus stop Monday, Dec. 9, 2019, in Hong Kong, the morning after hundreds of thousands of demonstrators crammed into Hong Kong's streets, their chants echoing off high-rises, in a mass show of support for the protest movement entering its seventh month. (AP PhotoVincent Thian)

In this Sunday, Dec. 8, 2019, photo, pro-democracy protesters march into the night in central Hong Kong. Hundreds of thousands thronged Hong Kong streets Sunday, in a mass show of support for a protest movement that shows no signs of flagging as it enters a seventh month. (AP PhotoDake Kang)

In this Sunday, Dec. 8, 2019, photo, pro-democracy protesters march into the night in central Hong Kong. Hundreds of thousands thronged Hong Kong streets Sunday, in a mass show of support for a protest movement that shows no signs of flagging as it enters a seventh month. (AP PhotoDake Kang)