Five gold miners have been rescued in western Tanzania after being trapped underground for 41 days, while 12 others are still missing, police say.

The artisanal miners survived by eating roots, soil, frogs and cockroaches and are receiving treatment at hospital.

The group had gone underground to rescue 11 other miners when they became trapped, police said.

Many people search for gold in unregulated mines in remote areas of Tanzania in the hope of becoming rich.

This is one of the longest periods that miners have remained trapped underground.

In Chile, 33 were rescued after 69 days in 2010 in an operation which gained worldwide attention.BBC