The are investigating two separate shootings that occurred on May 5.
No one was injured during these shootings.
An unknown person fired a single round into the Bryn Mawr Trust Bank building at 31 Baltimore Pike in Chester Heights Borough at about 6:30 a.m. on May 5, according to State Police.
The bullet went into the building and lodged in an internal wall, according to State Police.
The bullet will be sent for lab analysis.
At about 4 a.m. on May 5, another bullet was recovered from a vehicle parked outside a residence on the 200 block of Mount Alverno Road in Middletown Township, according to State Police.
Anyone with any information regarding either of these shootings is asked to contact State Police at 484-840-1000.