South Africa’s President Jacob Zuma spoke to Zimbabwean President Robert Mugabe on Wednesday, and Mugabe told Zuma that he was confined to his home but that he was fine, the South African presidency said in a statement.

The presidency added that Zuma, in his capacity as chair of the Southern African Development Community, was sending special envoys to Zimbabwe to meet with Mugabe and the Zimbabwean Defence Force, which has seized power in Harare.

Zimbabwe’s ruling party has claimed on social media that Mugabe and his family were detained Tuesday night in what increasingly looks like an attempt to depose longtime president.

“Last night the first family was detained and are safe, both for the constitution and the sanity of the nation this was necessary,” said the Wednesday morning Tweet, sent from the @zanu_pf handle. “Neither Zimbabwe nor ZANU are owned by Mugabe and his wife. Today begins a fresh new era and comrade Mnangagwa will help us achieve a better Zimbabwe.”

The Twitter account has previously been used to air the party’s beliefs, though it was not possible to independently verify the claims.

The tweet refers to recently deposed Vice President Emmerson Mnangagwa, who Mugabe last week accused of disloyalty and plotting to seize power. Mnangagwa’s whereabouts early Wednesday were unknown – South African officials would not confirm rumors that he is in neighboring South Africa, although members of the powerful military veterans’ association told reporters last week that he was planning to come to South Africa after he fled Zimbabwe last week.

The claim adds to the military’s statement early Wednesday, delivered after soldiers took over state television, that the army is not carrying out a military takeover of the government and that Mugabe and his family are safe. However, the situation remained tense in the capital as Zimbabweans both inside and outside the country watched and wondered about the fate of the 93-year-old president, who has ruled the Southern African nation since 1980. In that time, the economy has all but collapsed and Zimbabwe has become a pariah state in the West over allegations of human rights abuses.

“We wish to make this abundantly clear this is not a military takeover of government,” army spokesman Maj. Gen. SB Moyo said in the early morning statement. “What the Zimbabwe defense forces is doing is to pacify a degenerating political, social and economic situation in our country which if not addressed may result in violent conflict.”

“We are only targeting criminals around him who are committing crimes that are causing social and economic suffering in the country in order to bring them to justice,” he said.

The announcement followed witness reports of at least three explosions and heavy gunfire in the capital city of Harare early Wednesday.

Witnesses also said military vehicles and soldiers were on the streets early Wednesday, hours after soldiers took over state broadcaster ZBC. Local residents said instead of the usual 11 p.m. newscast, music videos were played instead.

•Pieced together from reports by Reuters and VOA.