A car bomb detonated near a Pennsylvania lottery office and the nearby state lottery office on Tuesday, killing two people and injuring three others, authorities said.
The explosion took place just after 1pm local time (8pm AEDT), in the western town of Chesterfield near the state lottery headquarters, Chesterfield Police Chief Robert McKeon said.
The explosion also injured a woman and injured three others in the car, McKeons office said in a statement.
The blast injured two people who were taken to hospitals in Pennsylvania, and a third person was taken to a hospital in Pennsylvania.
“The explosion was reported near the Chesterfield lottery office in Chesterfield, Pennsylvania, at around 1:40pm local on Tuesday and caused a number of injuries,” Chesterfield Mayor Richard G. Daley said in the statement.
“There was a female passenger in the vehicle who was transported to a local hospital in critical condition.
We are still trying to determine the exact cause of the explosion.
As we speak, we do not have information on the number of fatalities.”
No one else was hurt in the explosion, which was not immediately clear how many people were in the two-door red car.
The explosions happened in two minutes, but the blast was loud enough to be heard over the din of the city, Daley’s statement said.
No injuries were reported.
Authorities have yet to release a suspect, but said there was a “strong possibility” that it was related to an explosion at a Pennsylvania gas station in June that killed nine people.
Authorities said they were investigating the possibility that the gas station explosion may have been connected to an earlier gas station blast in Pennsylvania in April.
Authorities were also looking into whether a car explosion that killed a man in February in Chester County was linked to a gas station, police said.
Investigators were searching for an older red car with a silver and black top.
Police did not say if the explosion was connected to the gas-station explosion.
In a statement, the Chester County Emergency Management Agency said the explosion occurred in Chester county and that “there is a suspect vehicle located at this time”.
“We are working with local authorities and the Chester Field Police Department to identify the person(s) responsible for this heinous act of terrorism,” the agency said.
“We ask that the public respect our ongoing investigation.
Chesterfield Police have a full-time, dedicated and dedicated officer assigned to this area.
The Chesterfield PD is fully cooperating with the federal authorities in this matter.”