Syrian women walk in between destroyed buildings in Homs on September 19 | Louai Beshara/AFP via Getty Images UK, Denmark accidentally bombed Syrian army Britain ‘would not intentionally target Syrian military units,’ defense spokesperson says.

Britain joined Australia and Denmark on Monday in announcing its forces' involvement in a U.S.-led airstrike over the weekend that mistakenly targeted the Syrian army, killing more than 60 troops.

"We can confirm that the U.K. participated in the coalition airstrike south of Deir Ezzor on Saturday, and we are fully co-operating with the coalition investigation," a U.K. defense ministry spokesman said, according to AFP.

The spokesperson added that Britain "would not intentionally target Syrian military units.”

At least 62 Syrian soldiers were killed and about 100 others injured in the strike on the army post in the country's east, from where government forces were combating ISIL terrorists.

Syrian President Bashar al-Assad described the raid Monday as "flagrant American aggression," AFP reported.

The Danish military said in a statement Sunday that two of its F-16 jets also participated in the attacks.

"The strikes had been stopped immediately after the Russian side reported that the positions of the Syrian servicemen had been hit," the Danish statement said.

Australia said Sunday that one of its aircraft had also taken part and offered "condolences to the families of any Syrian personnel killed or wounded."

The U.S. has pledged to investigate the incident.