Commenting on the resignation of Baroness Warsi as a foreign office minister, former Liberal Democrat leader Sir Menzies Campbell MP said:
"Baroness Warsi's resignation reflects the unease and anxiety in parliament and in the country about the UK Government's present position.
"She is right to say the United Kingdom must stand firm and uphold the rule of law and international justice. Liberal Democrats strongly support this view and that's why Nick Clegg and I have not shied away from criticising Israel's apparent disproportionate actions which result in the collective suffering of Palestinians in Gaza.
"Israeli attacks on UN schools are a violation of international law.
"International humanitarian law is explicit that military attacks must distinguish between legitimate military targets and civilians. Israel has repeatedly been told the exact coordinates of all UN schools where innocent civilians are seeking safe haven.
"International investigations into these attacks must begin immediately, with full cooperation from the Israeli government.
"If the Israeli Government claims that its response to Hamas is proportionate, what on earth would disproportionate look like? The defenceless women and children of Gaza are in desperate need of our support."