One worshipper was killed and ten others injured in Sunday morning grenade attack at a Church in Nairobi's Ngara area.
Six of the injured are at the Guru Nanak hospital along Muranga road, while four others said to be in critical condition have been taken to Kenyatta National Hospital.
Sunday's attack at God's House of Miracle International Church comes days after the United States embassy issued a warning of a looming attack within Nairobi.
The embassy issued an advisory last Monday, claiming a possible attack was in the last stages of planning. (READ: US embassy warns of fresh Nairobi attacks)
Citing credible intelligence, the warning urged American citizens in Kenya to be vigilant of the personal security.
"Timing of the attack is not known, however, the Embassy has reason to believe that the potential attack is in the last stages of planning. The U.S. Embassy urges Americans to remain aware of their surroundings and vigilant of their personal security," a statement from the embassy said.
Last month, explosives were hurled at a Christian prayer meeting in Mtwapa, fifteen kilometres from Mombasa town centre, at about 6.30pm. (READ: Twin explosions rock Mombasa)
At least 26 people were reported injured in the attack at the prayer gathering.
MORE TO FOLLOW.