Thousands of pets are being abandoned in Dubai as their owners flee the Middle East because of the Iran war, animal charities have said.

The RSPCA said pets of fleeing UK nationals could become “hidden victims” of the conflict as people who had relocated to the Gulf city scramble for an exit and struggle to bring their animals.

Last week, the UK government operated an emergency evacuation flight for people leaving the Middle East as the war continued. About 45,000 British nationals have left the Middle East since 1 March.

Hannah Mainds, the chief executive of the RSPCA Blackpool and north Lancashire branch, previously lived in Dubai and helped care for pets left behind after their owners suddenly left the country.

“Some [pets] were microchipped and clearly once loved, but their families had gone. It’s heartbreaking for rescuers and frightening for the animals,” Mainds said.