Many Lebanese civilians voluntarily joined the rescue effort.[60] Especially important was a Lebanese construction contractor, Rafiq Hariri of the firm Oger-Liban, who provided heavy construction equipment, e.g., a 40-ton P & H crane, etc., from nearby BIA worksites. Hariri's construction equipment proved vitally necessary in lifting and removing heavy slabs of concrete debris at the barracks site just as it had been necessary in assisting with clearing debris after the April U.S. Embassy attack.[60][61]