A convoy of dozens of trucks transporting a massive oil drilling machine arrived Friday at the site of the San Jose gold and copper mine in Chile, where 33 miners are trapped.

The drill is the third one being employed to try to rescue the miners, who have now been underground for 36 days.

It has been labeled "Plan C" and it is hoped that it will speed the rescue effort.

However, freedom for the trapped miners is likely to still be months away.

The 33 men were trapped by a mine cave-in on August 5. But it was not until August 22 that they were discovered alive.

Rescuers have been sending food, medicine and relatives' letters through a chute to where the miners are located, 700 meters below the surface.

Some information for this report was provided by AFP, AP and Reuters.