VIDEO: An attack on four EMTs inside a Bronx apartment building has left the first responders injured and a suspect in custody Friday morning.

The assault happened just after 10 p.m. Thursday on the seventh floor of an apartment building along Sedgwick Avenue in the Morris Heights section of the Bronx.

The EMTs were responding to a call involving a resident of the building when they were attacked in the hallway.

Cleanup crews were seen inside the building overnight, clearing shards of broken glass scattered across the floor.

Police say there was also blood on the hallway floor and walls.

According to authorities, the EMTs were assaulted by a 22-year-old resident when they arrived on the seventh floor. The reason for the attack is still under investigation.

A 32-year-old EMT suffered a laceration to the head, while a 20-year-old EMT was treated for injuries to the face. Both were taken to the hospital in stable condition. Two other EMTs also sustained minor injuries.

WABC-TV ABC 7 New York City