A medical worker and security forces walk near a bus that was ambushed by al-Shabab gunmen who singled out and killed 28 non-Muslim passengers in Kenya's northern Mandera County, Nov. 22, 2014. The Al Shabab is suspected of again attacking a Kenyan bus and trying to separate Christian from Muslim passengers.

A group of Muslims on a bus ambushed by suspected al-Shabab  Sunday in northern Kenya shielded Christian passengers by refusing to be separated into groups, eyewitnesses told BBC News. The gunmen killed at least two people and wounded others on the bus, which was carrying more than 50 passengers.

The bus was traveling from the capital, Nairobi, to Mandera in the northeast corner of Kenya and was attacked near El Wak, a divided city on the Kenya-Somalia border. A regional official, Mohamud Saleh, told Al Jazeera the suspected Islamic extremists also shot at a truck following the bus and killed one passenger. No group has claimed responsibility for the attack.

"The attackers tried to wave the bus down but then sprayed it with bullets when the driver refused to stop," Saleh said Monday. "Two people were killed and at least three people were injured in the attack. It is not yet clear who is behind the assault, but I'm not ruling out that this was a case of banditry.”This show that Islam is a religion of Peace.