Search for Mandela's buried gun

South African historians are searching for a gun buried by Nelson Mandela in Johannesburg before his 1963 arrest.
The former South African president has told how he buried the weapon on the farm where he was hiding at the time.

He and other ANC leaders were later arrested on the farm, and were jailed for their work against apartheid. Mr Mandela was freed in 1990.

Nicholas Wolpe, head of the trust which is carrying out the search, said he was confident that the gun would be found.