Islamic militant group Al-Shabab has claimed responsibility for a suicide bomb attack on the Somali parliament that killed at least 5 people, according to Somalia news reports.

The blast, in the capital city of Mogadishu, killed three soldiers and two civilians, according to Al Jazeera. A sixth person was also killed during the incident, shot by soldiers as he drove past the attack.

Al-Shabab are fighting the UN-backed Somali government and in May killed 10 people in an attack on the parliament in Mogadishu.

The group, which claims connections to Al Qaeda and controls large parts of the east African nation, have killed 4 politicians so far this year. The most recent was the assassination of Mohamed Mohamud Hayd, a senior-MP, on Thursday.