ROME - Two high-speed trains collided in Italy's capital Rome on Thursday, injuring four people.

According to ANSA news agency, some bogies of a Frecciarossa train arriving from Milan hit a stationary train at Roma Termini station.

In the crash, four people were injured and rushed to the hospital, but their conditions were reportedly not serious.

The train probably derailed, some station sources were quoted as saying by ANSA, but investigations are underway to determine the exact cause of the accident.