Two state troopers were hurt Wednesday night when they fell about 20 from a tree stand in an area where authorities are searching for Eric Frein, who is accused of shooting to death a state trooper and wounding another on Sept. 12 at the Blooming Grove barracks in Pike County.

The troopers had climbed up into the stand to make sure Frein wasn't hiding there, or had stayed there."While inside the stand, the floor collapsed and both men fell to the ground. They were treated by tactical medics at the scene. At the advice of the medics they were air lifted to Lehigh Valley Medical Center, where they were treated and released," Trooper Tom Kelly said.Both troopers are from Troop H in Harrisburg.Police believe Frein, 31, of Canadensis, hid in the woods across from the barracks and, at 10:55 p.m. Sept. 12, shot Cpl. Bryon Dickson, 38, killing him, and seriously wounding Trooper Alex Douglass, 31.Frein is a self-styled survivalist, expert marksman and fond of dressing in military gear and portraying soldiers. Police earlier this week found two functional pipe bombs among other supplies they believe Frein hurriedly dropped as he fled from authorities.The search area includes Barrett and Price townships.The discovery of the pipe bombs has prompted the state Game Commission to suspend hunting and close state game lands in Price, Barrett and Paradise townships in Monroe County, and Blooming Grove, Porter, Lehman and Greene townships in Pike County.The state Department of Conservation and Natural Resources has also closed sections of the 83,519-acre Delaware State Forest to hunters and others hiking or camping in the woodlands.Spokesman Terry Brady said hunters need to follow boundaries established by state police."We're asking people to not go on state forest lands on foot," he said.The roads are still open, and it's still OK to drive through the forest lands, though."It's not like a wall is going up," Brady said."Safety of state forestland visitors is paramount as the search continues for the fugitive wanted in the shooting death of a state police trooper," said DCNR Secretary Ellen Ferretti. "This is a necessary inconvenience to many but it is designed to aid investigators and protect all forest visitors, not just hunters."Lt. Col. George Bivens on Tuesday said Frein is weakening, and making mistakes and dropping supplies as he continues to elude police. Among the items Frein has left behind are an AK-47 style firearm and ammunition, soiled diapers and empty packs of Serbian cigarettes.