Police are responding to a report of an active shooter at Villanova University in Pennsylvania, according a post by the Radnor Township Police Department on its Facebook page.

VILLANOVA, Pa. (AP) — Police responded Thursday to a report of an active shooter on the campus of Villanova University, days before the start of classes.

The Radnor Township Police Department asked that students and nearby resident shelter in place. It was not immediately known if there are any injuries.

Police tracked down and arrested a 39-year-old Baltimore man after failed heist at the M&T Bank in York County.

The boys, aged 2 and 10, were last seen at around 1:30 a.m. in the 300 block of S. Virgil Avenue, according to the Los Angeles Police Department.

A Colombian National Police helicopter was attacked Thursday in the Antioquia department, leaving eight people dead and several injured, according to President Gustavo Petro.

Chester police shot a man who fired a gun at them on Wednesday evening, Delaware County officials said. The gunfire was exchanged around 11:35 p.m. on the 100 block of West 21st Street, the District Attorney’s Office said Thursday.

The brutal murders of Lauren Semanchik, 33, and her 29-year-old boyfriend, Tyler Webb, in early August shook Franklin Township. Investigators say New Jersey State Police Sgt. Ricardo Santos, Semanchik's ex-boyfriend, killed the couple before turning the gun on himself.