A US Coast Guard helicopter rescued two lobstermen off Wasque Point on Martha’s Vineyard after their vessel began taking on water, officials said. The 44-foot lobster boat, named the Bill B II, was taking on water at about 5 a.m. Thursday. The lobstermen began pumping water out, but the pumps became inundated and could not keep up with the water coming in, said Coast Guard spokesman Ross Ruddell. The captain then decided to ground the vessel, Ruddell added. An MH-60 Jayhawk helicopter based at Air Station Cape Cod and a 47-foot rescue boat from the Menemsha Coast Guard station were deployed, and by 6 a.m. the fishermen were rescued.