Two sound bombs went off outside US and British entities in Baghdad on Thursday, the latest attacks targeting foreign companies that are believed to be related to the war in Gaza.
A sound bomb went off outside a headquarters for the US company Caterpillar in the early hours of the day, and another went off outside a British language institute, without causing any damage, the military-linked Security Media Cell said.
In recent days, unknown attackers targeted three KFC restaurants in Baghdad using explosive devices, causing damage but no injuries. Interior Minister Abdul-Amir al-Shammari sacked the commander of one of the brigades responsible for the area where the attacks took place.
The ministry said several suspects were arrested, however, it did not reveal their motive.
While no group has claimed responsibility, there is speculation that an Iran-allied militia could be behind them.
Pro-Iranian militias in Iraq have repeatedly claimed hitting US military bases inside Iraq and Syria with drones and missiles since the Gaza war began in October.
This week, Iraq's influential populist cleric Muqtada al-Sadr called for the expulsion of the US ambassador in Baghdad and the closure of the embassy.
Across the Arab world, a boycott movement began since the Gaza war erupted almost eight months ago targeting US and European companies over their alleged links to Israel.