Two police chases spilled onto two Vallejo schools Wednesday morning while classes were in session.
In the first incident, officers were summoned at about 10:20 a.m. to the 3900 block of Georgia Street to reports of shots fired, police said.
A witness heard two gunshots and heard an alarm sounding from inside the vacant house, police said.
When officers arrived, the suspects fled. One hopped a fence and started running through the yard of Pennycook Elementary School, police said.