cei-tfh►feni-82 Injured in Panama Anti-U. S. DisordersPANAMA fAP—Panama was cjoff limits for Americans living in the Canal Zone today following violent anti-U.S. demons! rations during the . 56th anniversary of Panama’s independence. At least 82 persons were injured, three seriously.Crowds of demonstrators, protesting U.S. control of the canal, tore down the American flag at the U.S. Embassy Tuesday, stoned the embassy and the U.S. Information Service office, overturned American autos and battled U.S. canal police for four hours.The mobs finally were routed by Panamanian National Guardsmen, Canal Zone police and fireman and U.S. Army troops armed with rifles, bayonets and machine-guns, The Canal Zone police arrested six demonstrators.Anti - American demonstrations also took place in Colon, Panama'ssecond largest city at the Caribbean end of the canal. One mob broke into a U.S.-owned railroad station and carried off the cash box. The ticket agent escaped by locking himself in his office.Troops from the Army’s Caribbean Command stood guard along the Cana! Zone's borders. The 90,000 Americans living in the Zone were ordered to stay inside the 500 square miles of U.S. territory. The Army cancelled plans for units to march in a Panamanian flag day parade in the capital today.The target of Tuesday’s outbreaks—touched off by Panamanian nationalists—was the unusual hold the United Stales has over the zone. The United States was granted control of the zone in per-i pctuity after it helped the Pana-j manians win their independence \ fror.. Colombia.