PHILADELPHIA—Police say a northeast Philadelphia deli owner killed a robbery suspect during an exchange of gunfire.

A police spokeswoman says an unidentified man tried to rob Anna's Deli in the Tacony section of the city just after 6 p.m. Tuesday.

Police said the suspect exchanged fire with the 55-year-old store owner and was shot once in the chest.

An emergency services medic pronounced him dead at the scene just after 6:20 p.m. Tuesday. The store owner was uninjured.

Police said no arrests have been made.