Rescuers are busy working at the collapsed tungsten mine.

Four miners were rescued shortly before 5 a.m. on Monday, about 80 hours after a roof collapsed at a tungsten mine in Longnan, in east China's Jiangxi Province.

The four were in good condition, since rescuers had pumped air into the ventilation system and also sent down milk and water since Saturday noon, said the rescue headquarters at Hantan Tungsten Mine of Jiahu Village in Longnan County.

A search began on Thursday evening after co-workers realized the four were missing. The co-workers, suspecting a cave-in, tapped on the track leading to the shaft and heard the trapped miners knocking in response.

A rescue team of 150 people was summoned and eventually opened a 27-m tunnel to reach the trapped miners.

(Xinhua News Agency November 24, 2008)