At least six people were injured following a roadside landmine explosion outside a restaurant here in Somalia's Wardhigley district, the media reported.The mine went off on Thursday evening targeting people who were seated at the front side of a coffee restaurant in Laba Dhagah junction in Wardhigley district.Police officer Dahir Mohamed confirmed the incident adding that security officers were already conducting investigations, Xinhua news agency reported."I can confirm that six people have been injured. Almost all of them were outside the restaurant. Security forces are already combing the scene for details," said Mohamed.A resident said that the explosion went off shortly after he left the restaurant. "I was there with my friends having coffee but I left early. After barely 25 minutes I heard a huge explosion from that direction. Some of my friends were injured."The motive of the attack was not immediately clear and no group has claimed responsibility.