The rocket struck an abandoned building next to the US Embassy, belonging to a security company, according to BBC correspondent Ali Hasem, who quoted sources in Iraqi security services.
The green zone is a specially guarded district in the Baghdad residential keys and embassies.
Saudi Arabian news reports that Iraqi security forces in Baghdad have been put on standby.
The excitement of the Spanish in the Persian Gulf
Earlier this week, the Americans from Baghdad pulled the entire embassy staff, except the employees who were necessary for their business. The tension in relation to US and Iranian confrontational movements is growing in the region
On Tuesday, US armed forces have once warned of any threat from Iran to their troops in Iraq. In addition, in early May, the United States sent a battleship to the Middle East with aircraft carriers Abraham Lincoln and a B-52 bomb squadron and patriot batteries.
In 2018, US President Donald Trump withdrew his country from an international agreement on the Iranian nuclear program and was restored previously suspended serious sanctions against Iran, on the grounds that Tehran continued to work on nuclear weapons
The agreement signed in 2015 between Iran and the six world powers mean that Iraq's military nuclear program is being wound up in exchange for the abolition of international sanctions