Baghdad: Two roadside bombs that went off as worshippers were leaving dawn prayers in south Baghdad on Tuesday killed at least four people, officials said.

The twin blasts struck at around 5:00 am (0200 GMT) in the predominantly Sunni neighbourhood of Dura at the Al Arqam Bin Al Arqam mosque, an Interior Ministry official said.

At least 14 people were also wounded in the explosions, the official and a medic at a nearby hospital said.

The latest deaths bring to at least 219 the number of people killed in Iraq attacks so far in April, according to an AFP tally, the fourth consecutive month where death tolls have topped 200.

By comparison, none of the last three months of 2012 saw tolls above 160.

Violence is down across Iraq since its peak in 2006 and 2007, but attacks remain common, and the deadliest are typically carried out by militants linked to Al Qaida who seek to undermine confidence in the Shiite-led government and security forces.