Two people were killed and three others wounded when Kenyan military officers opened a fire on a car travelling in Mandera County on Monday.
Mandera County Commissioner Fredrick Shisia told VOA's Somali service that security forces suspected the car of carrying explosives before shooting the two occupants.
But eyewitness say those killed were civilians and that no weapons were found in the car. They say those injured were passersby.
Meanwhile, residents in the town said that a major security operation was underway Monday in Mandera County following an attack that left two police officers dead at Lafey area on Sunday.
Somali militant group al-Shabab has claimed responsibility for the assault.
The Islamist militant group has carried numerous attacks in Kenya since Kenyan troops entered Somalia to fight al-Shabab in October 2011.
In the deadliest attack, gunmen killed 148 people at Garissa University College in central Kenya last April.