Several countries have dispatched their rescue teams to Haiti to begin the search operations for those who are still buried under the rubble of collapsed buildings following a devastating quake. An earthquake of 7.3-magnitude rocked the Caribbean nation of Haiti on Wednesday and damaged presidential palace besides other government buildings in the country's capital Port-au-Prince. The country's prime minister warned the death toll may top one lakh in a calamitous quake which left streets strewn with corpses and thousands missing in a scene of utter carnage.