An explosion on a bus in the Kenyan capital, Nairobi, has killed at least seven people.

The Kenyan Red Cross says at least 29 people were injured in the blast

Sunday's explosion occurred on a local bus in the Somali-dominated suburb of Eastleigh.

Early reports say an explosive device was thrown into the bus causing the blast. However, police have not confirmed that.

Kenya has been hit by a string of deadly attacks blamed on Somali militants and their sympathizers in retaliation for Kenya's decision to send troops into the country last year.