An explosive device in Mandera County Kenya this morning left three people killed and one seriously injured after the victims unexpectedly ran into it, Police reports.

The 10am incident targeted a team clearing a road on the Kenya-Somalia border, that’s according to Mandera South Deputy County Commissioner Paul Kemei.

“The victims have been clearing a road along the security wall and they were hit by what we suspect to be an improvised explosive device,” Mr Kemei said.

According to Kemei,the explosive must have been planted early in the morning by suspected Al-Shabaab militants.

KDF personnel inspect the ongoing fencing on the Kenya-Somalia border in Mandera County Kenya

The reason for the team lacking escorts at that time remains unknown, Kimere reveals.

“All teams working on the security wall have security provided but it remains unclear how this team went on site without security officers,” he said.

He said investigation are underway to establish why the contractor and his team went to the site unaccompanied.

Several terror incidents by suspected Al-Shabaab militant have been reported since 2015 when the Kenya national government announced the plan to build a security wall along Kenya-Somalia border to fend of attacks.