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By Humphrey Malalo
NAIROBI, April 23 (Reuters) - At least four people killed when a car bomb exploded outside a police station in a poor neighbourhood of the Kenyan capital Nairobi on Wednesday, the Interior Ministry said.
Police officers had earlier stopped the saloon car at traffic lights and were taking the occupants for questioning when the bomb exploded, the ministry said.
"At least 4 people dead after a saloon exploded at Pangani police station. Two of them are police officers," it said.
It was not immediately clear who was behind the attack.
Pangani is located next to Nairobi's Eastleigh district, an area populated by Somalis and targeted in past bomb and grenade attacks that police say Somali militants and their sympathisers carried out.
A second controlled detonation was carried out by bomb disposal officers shortly after the initial blast, a Reuters witness said. (Additional reporting by Thomas Mukoya and Richard Lough,; Writing by Richard Lough, Editing by Angus MacSwan)
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