NAIROBI (AFP) - Kenyan police blamed the Islamist Shebab militia for a grenade attack on a Nairobi bus station Saturday that killed at least three people and wounded more than 20 others.
"This is a cowardly act by al-Shebab elements," police spokesman Charles Owino told reporters at the bus station.
"But we will not relent in the war. We will get them and we will continue with the war."
Kenyan troops are currently fighting the Shebab in neighbouring Somalia.
"We can confirm that indeed three people have been killed, 21 injured," he added.
The attack took place at the Machakos country bus station, near the city centre. Earlier, a senior police official who did not want to be named told AFP it was believed several grenades had been thrown at the bus station.
"I just saw a vehicle pass and then someone just threw things that exploded," witness Charles Njenga told AFP.
"Many people have been injured," he added.
"I survived because I was in a bus that was still loading people."
It is the first such incident in the Kenyan capital since two grenade attacks carried out within 24 hours of each other last October killed one person and injured 30 others.
A Kenyan supporter of Somalia's Islamist Shebab fighters was arrested soon afterwards and was convicted after having confessed to the attacks.
No one has so far claimed responsibility for Saturday's killings.
But the Shebab have on several occasions threatened reprisal attacks against Kenya since it sent its troops over the border into southern Somalia in mid-October to fight the group.
Kenya its soldiers, backed by planes and helicopters, into Somalia following the abduction of several foreigners on Kenyan soil. The Shebab have denied any involvement in the kidnappings.