By Cris Chinaka and David Clarke
Harare - Zimbabwe threatened on Wednesday to execute 60 suspected mercenaries detained this week and accused American, British and Spanish spy agencies of involvement in a plot to topple Equatorial Guinea's government.
Equatorial Guinea, which has arrested what it called an advance party of 15 mercenaries, said "enemy powers" and multinational companies had been plotting against the small oil-producing Central African state.
The two countries, 2 000km apart, have put their security forces on high alert since Zimbabwe detained a Boeing 727 carrying 60 men, most of them South Africans, Angolans and Namibians, both white and black, on Sunday.
Associates of the men say they are innocent mine guards swept up in a bizarre misunderstanding.