SANA, Yemen — A splinter group of Al Qaeda said that it fired a rocket that landed near the United States Embassy in Sana on Saturday, wounding several guards, to retaliate for what it said was an American drone strike in a northern province of Yemen on Friday.

The State Department said that it had no indication that the embassy was the target of the attack, and that none of its staff members were wounded.

The rocket landed about 200 yards from the heavily fortified embassy, near members of the Yemeni special police force who guard the site. At least two were wounded, the police said. It was fired from a car using a M72 light antitank weapon, a police official said.

Several hours after the attack, Ansar al-Shariah, an affiliate of Al Qaeda in the Arabian Peninsula, said on its Twitter account that it had targeted the embassy with a rocket, wounding several guards and damaging a vehicle. The group said the attack was an act of revenge for a drone strike on Friday that had seriously wounded children in the northern province of Al Jawf.