A rabid beaver attacked two swimmers in a Baltimore County reservoir last weekend in separate incidents, health officials said, clamping down on one victim?s thighs and upper back as family members frantically dragged her from the water.

Authorities believe the same beaver is responsible for both attacks, one Saturday and one Sunday, in a cove near Loch Raven Drive north of Loch Raven Reservoir?s main dam. The husband of the victim injured in Sunday?s attack clubbed the beaver to death with a rock.