BAGHDAD – The U.S. military says it has captured a suspected senior Shiite militant believed to be behind a June bombing in Baghdad that killed four Americans and six Iraqis.

The military's statement says it detained the man Wednesday at the Baghdad airport.

It says the man is believed to be a senior leader of Iranian-backed militiamen in Iraq known as “special groups.”

It also says the man is thought to be responsible for the June 24 bombing in Baghdad's Sadr City district. Two U.S. soldiers and two American civilians were among those killed in the explosion at a district council building.

The military says the man, who was known to travel to Iran and Lebanon, was detained after his plane landed at the airport.