Police officer shot dead in Pennsylvania

A manhunt is underway as another officer is taken to hospital

Two police officers were shot in the American state of Pennsylvania, with the Washington Coroner confirming one of the officers had died.

The incident occurred at about 4am local time, WPXI.com said.  

Residents were told to stay inside their homes as police searched for the attacker. 

One of the injured officers was apparently taken to Canonsburg Hospital, while the other was flown to a hospital in the Pittsburgh area, about 20 miles away.

Their names have not been made public.   

The mayor of Canonsburg, Dave Rhome, confirmed to radio station WJPA that two officers had been shot, but was unable to give an update on their conditions. 

This story is developing ...