Benghazi, Libya (CNN) -- Rebel forces in the Nafusa Mountains of western Libya were under heavy attack Tuesday by forces loyal to leader Moammar Gadhafi and had issued a call for help, the National Transitional Council said. "Representatives have confirmed that Gadhafi forces are using GRAD missiles, snipers, and a previously unseen type of mortar," it said, adding that three locals were killed and another nine wounded on Tuesday. The Tunisian border is a portal for the delivery of humanitarian aid, which can no longer reach civilians in the area, it said. Pro-Gadhafi forces were also attacking the northwest Libyan city of Yafren, focusing on the hospital there, the statement said.
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NEW: Gadhafi forces reportedly using a previously unseen type of mortar
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Seven are killed and 32 wounded in Misrata, a physician says
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There are reports of two former Libyan officials crossing into Tunisia
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Fighting is keeping medical personnel away from the wounded, aid groups say
Security forces in @placeholder are accused of using sexual enhancement drugs as a "machete" and gang-raping women they stop at checkpoints, Moreno-Ocampo said.
Many people have been working out ways to flee @placeholder.