BEIRUT, April 11 (Xinhua) -- Lebanese Prime Minister Fouad Seniora has handed over a memorandum to UN Secretary-General Ban Ki-moon, urging the world body to take measures to create an international tribunal on the case of former Prime Minister Rafik Hariri's killing, local An Nahar daily reported on Wednesday.

    The memo came after failure to reach a compromise between the country's opposition and the pro-government parliament majority coalition over creation of the court.

    It asks the UN Security Council to "take any necessary measure in line with international laws," Lebanese Justice Minister Charles Rizk was quoted as saying.

    Rizk, however, stressed that the government will keep the doors open for further efforts aimed at approval of the court in accordance with the Lebanese constitution.

    The prime minister's memo, which was presented to UN special coordinator in Lebanon Geir Pederson, was accompanied by a letter updating Ban on the latest developments over the tribunal issue in Lebanon, Rizk said.

    About one week ago, 70 majority lawmakers also presented a similar message to Ban, requesting the Security Council to take "all alternative measures" to guarantee the establishment of the tribunal.

    Rafik Hariri was killed in a massive bomb blast in Beirut in February 2005. A UN probe has implicated involvement of Syrian officials in the killing though Damascus has denied its role.