A New Jersey campground where a tree fell on a tent last year, killing the man inside, will be closed permanently.

Environmental regulators say the upper campground at Bull’s Island Recreation Area in Hunterdon County’s Delaware Township contains trees whose roots have been weakened by repeated flooding, The Associated Press reported.

William Arias of Bound Brook was killed last June when a sycamore hit his tent at dawn in calm weather. The 46-year-old’s wife was hurt but three adolescent children in the tent were uninjured.

The state Department of Environmental Protection announced Thursday (March 15) that it would thin weakened trees before returning the area to its natural state. It may be reopened for passive recreation.

The campground is in a rural area near the Delaware River. A nearby campground downriver has also been shut down.