Hon Kong protesters trapped in campus siege, raising fears of crackdown

Some protesters were arrested, tackled to the ground, as others scrambled and tripped over barricades and fences as police pointed guns at them and threw punches

Hong Kong police laid siege to a university on Monday, firing rubber bullets and tear gas to pin back anti-government protesters armed with petrol bombs and other weapons and stop them from fleeing amid fears of a bloody crackdown.

Dozens, choking on the tear gas, tried to leave the Polytechnic University by breaking through police lines after a night of mayhem in the Chinese-ruled city in which roads were blocked, a bridge set on fire and a police officer was shot by a bow and arrow.

Some protesters were arrested, tackled to the ground, as others scrambled and tripped over barricades and