The Observatory said the bus had been en route to Damascus. It did not specify which group was behind the kidnapping.
"The group were probably warlords who have taken advantage of a total security vacuum in areas where the army has pulled out," said Abdel Rahman, who warned that there has been an increase in kidnappings in northern Syria.
"There are many who are taking advantage of the conflict and an absence of centralised power," he said.
"We are very concerned about what may happen to these women and children."
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"The group were probably warlords who have taken advantage of a total security vacuum in areas where the army has pulled out," said Abdel Rahman, who warned that there has been an increase in kidnappings in northern Syria.
"There are many who are taking advantage of the conflict and an absence of centralised power," he said.
"We are very concerned about what may happen to these women and children."
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