Two bomb blasts, caused by improvised explosive devices (IEDs), injured six people Thursday in northeast Sinai near Egypt's border with Israel.
The four American soldiers and two international peacekeepers wounded in the attack were all from the Multinational Force and Observers (MFO), an international coalition working to maintain peace between Egypt and Israel after a 1979 peace treaty.
"We are aware that four US and two Multinational Force and Observers (MFO) peacekeepers were injured today in two IED explosions in northeast Sinai," Defence Department spokesman Captain Jeff Davis said in a statement.
Reports indicate the two international peacekeepers were injured first after their vehicle was hit by an explosive device. Afterwards, the American soldiers were hit by a second explosion on a separate vehicle while en route to aid the first two, according to The Washington Post.
The soldiers, who remain unidentified, were airlifted to a medical facility to be treated for non-life-threatening injuries.
Officials are unsure what group is responsible for the attack due to the location of the incident. Local militants have conducted several attacks in the region after being inspired by ISIS, while Islamic militants were suspected of killing 16 border guards in North Sinai last month, according to Reuters.
Major Roger M. Cabiness said the Pentagon remains concerned about the deteriorating security conditions in the region - an issue that Israel has called on Egypt to address.
"We are considering what, if any, additional measures might be needed to ensure force protection. This includes bringing in additional equipment if necessary," he said.
