By Schams Elwazer
(CNN) -- At least 31 people, including Syrian regime soldiers, were killed in a car bombing Sunday at a checkpoint on the outskirts of Hama, the Syrian Observatory for Human Rights said.
Meanwhile, clashes between regime forces and rebel brigades keep raging on the eastern outskirts of the government-held city, the London-based Syrian opposition group said.
Another opposition group, the Local Coordination Committees in Syria, reported at least 15 killings in other parts of the country. Eight people were killed in Damascus and its suburbs, six in Aleppo province, and one in Homs province.
According to the United Nations, well over 100,000 people have died in the Syrian conflict, which began in March 2011 when government forces cracked down on peaceful protesters.
The U.N. humanitarian chief on Saturday called for a cease-fire in Moadamiyeh in the rural Damascus region so that aid workers could evacuate thousands of civilians trapped in the conflict.
"The humanitarian community has stressed time and time again that people must not be denied lifesaving help and that the fighting has to stop," Valerie Amos, under-secretary-general for humanitarian affairs, said in statement.
Aid groups have been barred from Moadamiyeh for months, she said.
"I call on all parties to agree (to) an immediate pause in hostilities in Moadamiyeh to allow humanitarian agencies unhindered access to evacuate the remaining civilians and deliver lifesaving treatment and supplies in areas where fighting and shelling is ongoing," said Amos, who is also the U.N. emergency relief coordinator.
Thousands of families also are trapped elsewhere in Syria, including in Nubil, Zahra, old Aleppo town, old Homs town and Hassakeh, she said.
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