(CNN)Gunmen attacked Garissa University College in Kenya on Thursday morning, wounding two police officers and one student, CNN affiliate NTV reported.
It's not clear how many gunmen were on campus.
Heavy gunfire was reported as police engaged attackers, NTV said. Ambulances waited nearby.
The gunshots started going off "like fireworks" around 5 a.m., at the time of morning prayers, witness Milka Ndung'u told NTV.
Ndung'u said she and others escaped to a field, but gunshots followed them and they continued fleeing.
Student Augustine Alanga told CNN he woke up to the sound of gunfire and described students running around the dormitories seeking shelter.
Garissa University College, in south central Kenya, is in an area where Al Shabaab militants have from sometimes led raids.
