Zambia president Michael Sata dies in London

 Zambian President Michael Sata has died in London, where he had been receiving treatment for an undisclosed illness, according to Zambian media reports.

The reports said mr Sata had died on Tuesday evening at London's King Edward VII hospital.

Government officials gave no immediate comment.

Sata, 77, left Zambia for medical treatment abroad on Oct. 19 accompanied by his wife and family members, according to a brief government statement that gave no further details.

There has been no official update on his condition and acting president Edgar Lungu had to lead celebrations last week to mark the landlocked nation's 50th anniversary of independence from Britain.