RAMALLAH, West Bank, March 8 (Reuters) - Palestinian President Mahmoud Abbas accused Israel on Tuesday of undermining peace efforts by dragging its feet over promises to free prisoners and pull back from West Bank cities.

Addressing the Palestinian parliament, Abbas voiced his toughest criticism of Israel since agreeing a ceasefire with Prime Minister Ariel Sharon a month ago. Israel froze peace moves after a Palestinian suicide bombing on Feb. 25.