Zimbabwe's President Emmerson Mnangagwa has sent his best wishes to US President Donald Trump and his wife after they tested positive for COVID-19.
Mr Trump and First Lady Melania Trump announced on Friday that they are self-isolating, with their physician saying they will "remain within the White House during their convalescence".
Relations between the two countries have been tense since the US imposed financial and travel restrictions on individuals and companies it accuses of gross violations of human rights.
Some of the restrictions started 20 years ago.
President Mnangagwa is among those sanctioned.
President Mnangagwa tweeted his message: