firearm

A crossbow and a firearm were recovered from the scene, police had previously said.

Those plans include scrapping the Royal Parks police and Safer Schools officers, along with cuts to forensics and mounted police, and potentially taking firearms off the Flying Squad.

A 38-year-old man who suffered a "self-inflicted injury" was arrested and two weapons - a crossbow and a firearm - were recovered from the scene.

He was jailed for life with a minimum term of 24 years in June 2022 after a jury convicted him of offences including grievous bodily harm and possessing firearms with intent to endanger life.

A total of 20 people have now been arrested, and face charges including attempted murder, fire-raising, firearms offences and road traffic offences.