An earthquake hit northern Haiti late Saturday, killing at least 11 people and sparking an overnight scramble to help towns in the impoverished Caribbean country battered by the shockwave.

Police said at least seven people died and more than 100 were injured in Port-de-Paix on the northern coast near the epicenter of the magnitude 5.9 quake, which struck at a depth of 11.7 kilometres (7.3 miles), according to the U.S. Geological Survey.

Another four people were killed in and around the town of Gros-Morne further south, local authorities said. Rescue teams fanned out to help residents, many of whom were still dealing with the trauma of a devastating earthquake in 2010.