The blast, which was a landmine, took place last night in Ambareyso village, 5km from Barawe district, the official headquarters of the South West Administration.
The area where the blast took place is inhabited by a militia group known as Ma’awiisley, who are fighting Al-Shabaab, and the blast resulted in casualties.
Former Barawe district commissioner Aden Omar Madobe, who heads the camp where the blast took place, said seven soldiers were injured in the blast.
The governor told the media that the blast was carried out by Al-Shabaab militants and that they were fighting against Al-Shabaab.
Explosion in Ambareeyso village in Barawe district comes at a time when there was an explosion in the city Marka yesterday.