BAGHDAD, April 24 (Reuters) - Two car bombs exploded in a parking lot in front of the Iranian embassy in Baghdad on Tuesday, wounding four people, a day after two bombs exploded in the same area, police said.

One person was killed and six wounded in Monday's bombings. The embassy, in Baghdad's Salhiya neighbourhood, was not damaged.

An Iraqi militant group, Ansar al-Sunna, claimed responsibility for Monday's attack in a statement posted on a Web site used by insurgents in Iraq.

Ansar al-Sunna is a Sunni Muslim militant group that has claimed several abductions and killings since the March 2003 U.S.-led invasion of Iraq.

U.S. officials accuse Iranians of fuelling Iraq's sectarian conflict by supplying weapons and training to Shi'ite militias. Relations between Iraq and Iran have also cooled over the continued detention by U.S. forces in Iraq of five Iranians accused of being intelligence agents.

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