“Mugabe ‘preparing to step down’ – senior source,” News24 website posted, without giving any further details.
Political tensions have been rising since President Mugabe recently sacked Emmerson Mnangagwa, a long-time ally, as vice-president.
Soldiers on Wednesday took over the headquarters of the state broadcaster ZBC and blocked access to government offices, but the army says this is not a military take over.
President Robert Mugabe, who leads the ruling Zanu-PF party, is safe, an army spokesman has said.
There was no official word, however, from the Mugabe family as to their whereabouts.