Heavy shelling rocked Somalia's capital on Sunday, killing at least seven people and wounding dozens, as rebels fired mortars at the country's lawmakers meeting for the first time this year. The insurgents launched their attack from their stronghold in Mogadishu's main Bakara market, triggering return shellfire from African Union peacekeepers. "We have so far carried out 7 dead civilians and 34 who were injured. We are busy collecting casualties," ambulance services coordinator Ali Muse told Reuters by telephone. He also said that the death toll was expected to rise. A police source said some rebel mortars landed near the parliament, which last met in December, but there were no direct hits.