The UN has launched an appeal for 562 million Dollars aid to help earthquake hit three million people of Haiti for six months. Tens of thousands of people have been killed in Tuesday's devastating earthquake and survivors have grown desperate as they wait for aid to arrive. The UN Chief Ban Ki- Moon has confirmed the death of his mission chief in Haiti. A total of about 360 million dollars have been pledged so far for the relief efforts. The US Secretary of State Hillary Clinton has arrived in the Haitian capital Port-au-Prince to work on an urgent bid to clear logistics hurdles and find ways to deliver aid to quake-hit people.