A strong aftershock has struck Haiti, one week after a devastating earthquake tore through the capital Port-au-Prince, killing an estimated 200,000 people.
The tremor, measuring 6.1 on the Richter scale, struck near the costal city of Jacmel on the Caribbean island.
There was no immediate information on the extent of the damage or the number of casualties but the tremor could further hamper relief efforts.
It comes eight days after an earthquake measuring 7.1 on the Richter scale razed through Port au Prince, leaving more than one million people homeless.
Medical and food supplies have so far been slow to reach survivors, who have been camping out on the streets of the Haitian capital.
Deliveries were held up last week by widespread looting but now US troops have been deployed to boost security.
Meanwhile, rescue teams are continuing their search for signs of life among the rubble.