Islamists vow to fight any foreign troops in Somalia

"God will help us to overcome all enemies and we believe we shall defeat them. We are not worried about their quantity and whatever weapons they have," Rage said.

His group has intensified attacks against the government since May and killed two legislators this week, including the security minister.

Some 300 people have been killed since May 7, in fighting residents say is the worst for years.

The Horn of Africa country has experienced violence for close to two decades.