Opposition leader Tzipi Livni on Monday canceled her participation in a Jewish function in London, after a warrant for her arrest was issued over part in last winter's Israel's Gaza offensive, Arab-language media have reported.

Al-Quds Al-Arabi claimed that Scotland Yard advised the organizers of the Jewish National Fund conference in northwest London that the former foreign minister had canceled her scheduled address to the assembly over threats of a possible lawsuit by pro-Palestinian groups.

The Al-Quds Al-Arabi report also said that a group of about 100 anti-Israel protesters rallied outside the Hendon Hall Hotel on Sunday, just as delegates arrived at the JNF meet.

Livni's office said in a statement following the report that her appearance at the London event was canceled two weeks ago due to a scheduling conflict.

Livni's office also said that the opposition leader was proud of all the decisions she made as foreign minister during the Gaza war, an operation which she said achieved its goal of bring security to Israel.

A United Kingdom court two months ago deferred until further notice an appeal by local pro-Palestinian groups to issue an arrest warrant against visiting Defense Minister Ehud Barak.

A similar appeal was issued in 2004 against Israel's then defense minister, Shaul Mofaz. At the time, Mofaz was granted immunity from international arrest and trial - a precedent set by the British court, which until then had given such protection only to foreign ministers or premiers