Kenya grenade kills as many as 7

A grenade explosion on a Kenya minibus killed seven people and wounded another 24 on Sunday in a predominantly Somali neighborhood of Nairobi.

The grenade was tossed onto the minibus, also known as a matatu, which was full of passengers riding through Somali-dominated Eastleigh region, according to CNN. No group has claimed responsibility for the attack.

"I saw bodies ripped apart," said a Reuters photographer at the scene of the blast. He also said he saw a crowd lifting five dead bodies wrapped in sacks onto the back of a police vehicle.

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Kenya has been subject to a string of deadly attacks in Nairobi, the southern port city of Mombasa, as well as the eastern garrison town of Garissa over the past year, Reuters reported. They have been blamed on al Shabab extremists and their sympathizers in retaliation of Kenya's deployment of troops in Somalia last year to remove al Qaeda-linked militants.

Al Shabab vowed to carry out attacks on Kenya because of its involvement in Somalia, noted the Associated Press. The rebel group has also been blamed for kidnapping foreign tourists and aid workers in Kenya.

According to CNN, seven weeks ago, one child died and several others were injured in a grenade attack on a children's Sunday school class in Kenya.