Four climbers were found dead on Tuesday on Mont Blanc, the highest peak in the Alps, the French authorities in the region said. The climbers, who were from Italy and South Korea, had been missing since Saturday.

       Boris Duffau, a public prosecutor in Bonneville, France, said in an email that police officers discovered the bodies of two South Korean climbers, ages 45 and 53, after rescue officers traveled to the mountain by helicopter on Tuesday afternoon. The two Italians, ages 40 and 53, were found about an hour later, he said.

       The security and rescue service that responds to emergencies on Mont Blanc, the Chamonix P.G.H.M., had received an alert around 5 p.m. on Saturday about people in need of help on the Three Mounts route of Mont Blanc, which is on the French side of the Alps that borders Italy, but a rescue helicopter could not immediately land there because of the bad weather, Mr. Duffau said.

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