Rescue workers yesterday afternoon located three explorers in a cave above Lake Vouliagmeni and by 10 p.m. had managed to pull one of them out to safety. The other two were well. The rescue team, including firemen and divers, found the three men around 100 meters beneath the entrance to the cave, which is near the junction of Sapphous and Argonafton streets, after their families reported them missing.

An Olympic Airlines passenger plane en route to Johannesburg returned to Athens shortly before 1.30 a.m. yesterday after an anonymous caller warned a television station that there was a bomb aboard the plane. The 138 passengers and 12 crew members evacuated the aircraft for a search to be conducted but nothing was found. The passengers left later yesterday.

Thousands of Athenians joined a rally in the city center on Saturday to protest against the Iraq war and what they termed the negative impact of the crackdown on terrorism. Similar rallies took place in Thessaloniki and in many cities around the world.