A couple of rockets targeted Baghdad’s “Green Zone” early on Sunday causing some damage, the government security apparatus reported. One of the rockets was knocked out with a C-Ram missile launched by military personnel protecting the US Embassy in the heavily-guarded zone and the other crashed a stone’s throw away, damaging two vehicles. Government security apparatuses have begun investigations into circumstance of the incident. The “Green Zone’ that house embassies and Iraqi government offices has been repeatedly targeted with such attacks. "The Green Zone in Baghdad was the target of two Katyusha rockets. The first was shot down in the air by C-RAM defense batteries, the second fell in a square, damaging two vehicles," the statement said. A security source told AFP that the shot down rocket fell near the US Embassy, while the second came down roughly 500 meters (1640 ft) away. Previously, the source told AFP that two rockets had been shot down near the US Embassy. No one claimed responsibility for the attack. In recent months, dozens of rocket assaults or drone bomb attacks have targeted US troops and interests in Iraq. The attacks are rarely claimed but are routinely pinned on pro-Iran factions in Iraq. The latest rocket salvo comes after the country this week announced the end of the "combat mission" on its territory of the anti-extremist coalition led by Washington. But roughly 2,500 American soldiers and 1,000 coalition soldiers deployed in Iraq will remain in the nation to pursue a role of training, advice and assistance. Pro-Iran factions in Iraq are calling for the departure of all US forces stationed in the country. The attack also coincides with the 10th anniversary of the departure of US troops from Iraq on Dec. 18, 2011, after the invasion and overthrow of Saddam Hussein in 2003. At the beginning of November, Iraqi Prime Minister Mustafa Al-Kadhimi escaped unharmed from an unclaimed drone bomb attack, which targeted his official residence in the Green Zone. In September, an "armed drone" attack targeted Erbil international airport in Iraqi Kurdistan, where there is a base hosting coalition troops. — Agencies