The Organization of the Islamic Conference (OIC) urged Islamic countries to extend aid to earthquake-devastated Haiti, which was struck again by a 6.1-magnitude on Wednesday as rescuers pulled more than 100 survivors from the rubble.
OIC Secretary General Ekmeleddin Ihsanoglu expressed "shock and sadness" over the January 12 quake which killed at least 75,000 people, injured another 250,000 and left more than a million homeless, according to a Haitian government toll.
Ihsanolglu "urged all OIC member states and civil society organizations to extend a helping hand to the Haitian population in this testing time of extreme hardship and sorrow," according to an OIC statement.
Meanwhile Haiti's capital was hit by a strong 6.1-magnitude earthquake 59 kilometers (36 miles) west of the capital Port-au-Prince, according to the U.S. Geological Survey, following the much more powerful quake on Jan. 12that is thought to have killed 100,000 to 200,000 people.
Residents reported a low vibration followed by a brief but more powerful rumbling shake at 6:03 am (1103 GMT).
AFP reporters in the city said there was no immediate sign of damage or casualties, but a crashing sound could be heard suggested that an already damaged building may have collapsed.
In nearby Petionville AFP staff said the quake was felt for around ten seconds.
The U.S. Geological Survey initially measured Wednesday's quake at 6.0.
It struck at a depth of 9.9 kilometers (6.2 miles) at 6:03 a.m. (1103 GMT).
Meanwhile rescuers pulled a three-week-old baby girl alive from the rubble of a house more than a week after it was destroyed, French radio reported.
French rescuers found the girl in a hollow beneath the ruins of the house in Jacmel, a town in the south of the island, after spending five hours trying the get through to her, France Inter station said.
The baby's uncle told the station that the girl, named Elisabeth, was 23 days old. The station reported she was in healthy condition and did not appear wounded and had been taken to an American field hospital nearby
Hoteline Losana, 25, was found in the wreckage of a supermarket late Tuesday only hours after Anna Zizi, who is about 70, started singing as she was carried away from the ruins of Port-au-Prince cathedral.
Losana was said to be "conscious and in good form" by Thiery Cerdan of the French group Rescuers Without Borders, which carried out the nine hour operation with Haitian firemen and American experts.
She had been in an apartment over a supermarket when the quake struck. Rescuers said she had no food or water, could barely move, and owed her survival to the position in which she was stuck.
"We pulled someone out seven days after an earthquake, that is quite extraordinary," said Bruno Besson, another member of the French team.
Hours earlier, Mexican firefighters rescued Zizi from under the ruins of the Roman Catholic cathedral.
"It seems rescuers were communicating with her and managing to get water to her through a tube. She was singing when she emerged," said Sarah Wilson, of British charity Christian Aid.
Some of the rescuers were so overcome that they started crying.
The United Nations said that 121 people had now been rescued by international teams in the past week and that there were still hopes of finding more.
But Major General Daniel Allyn, deputy commander of the military operation in Haiti, said U.S. forces would soon switch the focus of the operation to recovering bodies rather than looking for survivors.
The Haitian government gave a latest toll of 75,000 dead, with another 250,000 injured and more than a million left homeless.
U.S. troops fanned out across the ruined capital, where the pace of the relief operation has heightened street tensions.
Camped out under makeshift tents among the rubble, survivors faced a desperate hunt for food and water. For many looting is the only way.
"Look, when you are hungry and poor, nobody helps, you have to steal," a young man named Vincent said, as people plunged into the ruins of a flattened supermarket.
Look, when you are hungry and poor, nobody helps, you have to steal
A young man speaks about looting
On Tuesday, U.S. paratroopers secured the ruined presidential palace, which is now surrounded by a squalid refugee camp. About 100 marched to Port-au-Prince's general hospital, which is swamped with injured.
U.S. Marines also landed southwest of Port-au-Prince to link up with U.N. peacekeepers before more troops and equipment arrives.
State Department spokesman Gordon Duguid said there were 12,000 troops in or around Haiti, with about 2,200 Marines and sailors also expected to take part in the relief operation.
The U.N. Security Council voted unanimously to send 3,500 extra U.N. troops and police to Haiti to help maintain order and protect aid convoys.
Relatives told AFP that Haitian police killed a 15-year-old girl, Fabienne Cherisma, while firing warning shots over looters in the capital.
Some witnesses in the angry crowd, including the girl's father, said a policeman aimed deliberately at the girl, while others spoke of a warning shot that went astray.
The U.S. deputy military commander, Allyn, said there were now around 200 daily flights into the capital's damaged airport, and that two airstrips, in the coastal city of Jacmel and in San Isidro in neighboring Dominican Republic, would be in use by Thursday.
In a huge global effort, more than $1.2 billion has been pledged in aid funding for Haiti, according to U.N. data.