Questions have been raised over the whereabouts of 61-year-old Tanzanian leader, John Magufuli.
The Tanzanian President was last seen two weeks ago.
Opposition politicians have claimed Magufuli contracted coronavirus and he is in a dire condition.
But the government pushed back on the claim, with the police arresting four persons for spreading the rumour.
On Monday, Vice-President Samia Suluhu Hassan told Tanzanians not to listen to rumours and urged them to remain united.
“It’s quite normal for anybody to be afflicted by illness, to contract flu or a fever… this is the time for Tanzanians to be united through prayer,” she said, without elaborating who she was talking about.
But the anxiety from Tanzanians about their president’s disappearance persists.