By
"On the Al-Shebab threats and attacks at the Machakos bus terminus, four highly suspected criminals were arrested and are undergoing intensive interrogation," Nairobi Provincial Police chief Antony Kibuchi said. Six people were killed when four hand grenades were hurled at a crowd in the bus terminus in the Kenyan capital on Saturday, and more than 60 others were wounded. The suspects, all of whom are believed to be Kenyan, and three of whom are reportedly minors, were being interrogated by specialised police units, including anti-terrorism officers, a police source said.