Two city buses collided during rush hour in west Baltimore on Wednesday, sending 25 people to the hospital, one in serious condition.

Capt. Roman Clark of the Baltimore Fire Department says the two Maryland Transit Administration buses, one of them for people with physical disabilities, crashed just after 7 a.m.

He says 21 adults and four children were taken to the hospital. All but one adult had minor injuries.

The Maryland Transit Administration and the Baltimore Police Department are investigating.