Washington: The US military`s top officer said on Thursday bad weather in Libya had hampered a coalition air campaign this week, allowing Muammar Gaddafi`s forces to advance.
"The biggest problem the last three or four days has been weather," Admiral Mike Mullen, chairman of the Joint Chiefs of Staff, told senators.
"We have not been able to see through the weather or get through the weather to be able to do this kind of identification" of targets, Mullen said.
"And that has more than anything else reduced the impact... reduced the effectiveness, and has allowed the regime forces to move back to the east," he said.
Gaddafi`s forces had consolidated their positions to the south of Ajdabiya and were expected to renew an offensive towards Benghazi, Mullen said.
Ajdabiya is the last major town at the strategic crossroads to the rebel bastion city of Benghazi.