Kenya: Four killed in attack close to the Somali border
Gunmen have ambushed a vehicle in Kenya near the border with Somalia, killing four people, reports say.
A school teacher and a government official were among the dead as the attackers fired a rocket-propelled grenade, police said.
Kenya blames Somalia's militant Islamist group al-Shabab for a spate of abductions on its territory.
Al-Shabab denies the allegations and has vowed to take revenge against Kenya for sending troops into Somalia.
The BBC's Africa correspondent Andrew Harding reports from Nairobi.