The biggest island, Diego Garcia, hosts a joint UK-US airbase which is of strategic importance.
Samples analysed in all suspected cases are negative for Marburg virus, Tanzania's health minister says.
Justin Muturi says his son was freed following President William Ruto's intervention.
The group say their official witness statements were translated into Arabic by a boat company employee.
Daniel Chapo's legitimacy has been questioned following protests against his victory.
The 2024 CHAN finals in Kenya, Tanzania and Uganda, which were due to kick off on 1 February, are postponed until August.
The 2024 CHAN finals in Kenya, Tanzania and Uganda, which were due to kick off on 1 February, are postponed until August.
Rescuers say medical supplies are running low as health workers struggle to treat the victims.
Rescuers say medical supplies are running low as health workers struggle to treat the victims.
The police allege that the suspect was caught carrying the victim's head in a bag.