Iraq's interior minister said there were links between Thursday car bombing outside a Baghdad military recruiting station and Jordanian-born terrorist Abu Musab al-Zarqawi (search).
When asked by reporters if he saw al-Zarqawi's hand in the attack, interim Interior Minister Falah Hassan al-Naqib said "I think there is some links."
He also blamed the attack and a spate of other car bombings on foreigners. The U.S. military has counted 20 car bomb attacks so far in June alone.
"We are quite sure and confident they are not Iraqis," al-Naqib said. "And we have very good indications that they came from abroad."
Al-Naqib said that one of al-Zarqawi's aides had been arrested, though he didn't say, who, where or when.
Al-Zarqawi is a Jordanian-born extremist believed to have ties to Usama bin Laden.
The CIA says al-Zarqawi was the black-clad militant who decapitated Nicholas Berg (search) in a videotape posted last month on an Islamic Web site. He also is believed to have been behind numerous bombings in Iraq.
U.S. authorities are offering a $10 million reward for his capture.