Two Labour MPs have been denied entry and deported from Israel after being accused of plotting to "document the activities of security forces and spread anti-Israel hatred".

Earley & Woodley MP Yuan Yang and Sheffield Central MP Abtisam Mohamed flew from Luton to Israel on Saturday.

The Israeli Embassy in the UK claimed the pair were denied entry to Israel "after accusing Israel of false claims, calling for a boycott, spreading lies, and actively promoting sanctions against Israeli ministers while supporting campaigns aimed at boycotting the State of Israel".

The statement added: "The visit was intended to provoke, harm Israeli citizens, and spread falsehoods about them.

"It is Israel's responsibility to prevent the entry of such individuals (just as is the practice in the United Kingdom)."

Israeli's migration ministry also claimed Yang and Mohamed were accompanied by two assistants.

During questioning, the MPs claimed they were visiting Israel "as part of an official parliamentary delegation".

However Foreign Secretary David Lammy responded to the MPs's detention by labelling the Israeli Government's action was "unacceptable, counterproductive, and deeply concerning".

"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," Lammy told Sky News.

"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."

Yang, who gained her Berkshire seat with a swing of 12 per cent, sits on the Commons Treasury Committee.

Meanwhile, Mohamed joined the Commons Foreign Affairs Committee shortly after entering Parliament.