Britain’s Foreign Secretary David Lammy has said it was “unacceptable” and deeply concerning that Israel had detained two UK lawmakers and denied them entry, AFP reports.

Yuan Yang and Abtisam Mohamed, from the governing Labour Party, flew from London to Israel but were blocked from entering the country and deported, British media reported.

“It is unacceptable, counterproductive, and deeply concerning that two British MPs on a parliamentary delegation to Israel have been detained and refused entry by the Israeli authorities,” Lammy said in a statement.

“I have made clear to my counterparts in the Israeli government that this is no way to treat British parliamentarians, and we have been in contact with both MPs tonight to offer our support.

“The UK government’s focus remains securing a return to the ceasefire and negotiations to stop the bloodshed, free the hostages and end the conflict in Gaza.”