At least 14 people have now died after Saturday's 5.9-magnitude quake in Haiti, with more than 100 others injured.
Haiti's President Jovenel Moise took to Twitter on Sunday to write, "Emergency operations are multiplying". There are no immediate reports of damage or injuries. There were early reports of damage and casualties, although the extent was not immediately clear.
"I urge the population to keep calm".
The 5.9 quake on the Richter scale was registered at 20:11 local time with a depth of 15.3 kilometers.
According to the Interior ministry, eight people died in the coastal town of Port-de-Paix -the department capital of the North-West- three in Gros-Morne, which is located about fifty kilometres south-east of this locality and to Saint-Louis-du-Nord.
Among the damaged buildings was a church in the northern town of Plaisance, the agency said.
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According to a statement from the country's Civil Protection agency, several people were injured in Port-de-Paix, Gros-Morne, Chansolme and Tortuga island, where houses were destroyed or damaged.
The agency confirmed that some homes were destroyed or damaged, without offering specific figures. Residents using saws or their bare hands scrambled to recover metal support rods from the debris for resale, before being chased away by authorities.
Pierre Jacques Baudre, a farmer and father of seven, said he was afraid to return to his home after one wall built with rocks and cement crumbled. He also said the government had sent water and food.
"The United States and Haiti are strategic partners and friends, and we stand ready to assist in the relief effort, if requested", Washington said.
The UN representative in Haiti, Helen La Lime, also offered help.
After the tremor, which occurred nearly nine years after a 7.0 magnitude quake shook Port-au-Prince and left more than 300,000 people dead, President Jovenel Moïse appealed for calm.