Officials say the country defeated a coup bid by foreign mercenaries against President Teodoro Obiang Nguema, Africa's longest-serving leader.
Equatorial Guinea said on Wednesday it had thwarted a coup against President Teodoro Obiang Nguema, Africa's longest-serving leader, allegedly mounted by foreign mercenaries recruited by his political opponents.
AFP news agency quoting unnamed sources said that the West African country's ambassador to Chad had been arrested and was being held in a military camp.
In a statement read on public radio, Security Minister Nicolas Obama Nchama said that the attempted coup began on December 24.
"A group of Chadian, Sudanese and Centrafricans [citizens of the Central African Republic] infiltrated Kye Ossi, Ebibeyin, Mongomo, Bata and Malabo to attack the head of state, who was in the Koete Mongomo presidential palace for the year-end holiday," he said.
The "mercenaries... were recruited by Equatorial Guinean militants from certain radical opposition parties with the support of certain powers," the minister said.
The attempted infiltration had been repelled thanks to an operation carried out "in collaboration with the Cameroon security services," he said.
Fresh clashes were reported on Wednesday, in which government troops shot dead a "mercenary" near the border with Cameroon "and used gunfire to disperse them in the forests along the border," state television TVGE said.
Formerly a Spanish colony, Equatorial Guinea is one of sub-Sahara's biggest oil producers but a large proportion of its 1.2 million population lives in poverty.
Obiang, in power for more than 38 years, is accused by critics of brutal repression of opponents, electoral fraud and corruption.
"Invasion and destabilisation attempt"
Wednesday's announcement came after Cameroon on December 27 arrested 38 heavily armed men on the border with the tiny state.
Two days later, Equatorial Guinea's ambassador to France, Miguel Oyono Ndong Mifumu, referred to the incident as an "invasion and destabilisation attempt."
The suspects, taken into custody in a bus on the border, had rocket launchers, rifles and a stockpile of ammunition, according to his office.
On Saturday, the 75-year-old Obiang said "a war" was being prepared against his regime, "because they say I have spent a lot of time in power."
The same day, the country's ambassador to Chad, Enrique Nsue Anguesom, was arrested in the district of Ebibeyin, on Equatorial Guinea's border with Cameroon, one of his cousins and a senior police officer told AFP on Wednesday, speaking on condition of anonymity.
Obiang took power in a coup on August 3, 1979, ousting his own uncle, Francisco Macias Nguema, who was shot by firing squad.
He was re-elected to a fifth seven-year term in 2016, gaining more than 90 percent of the vote, according to the official results.
Legislative elections on November 12 last year saw the ruling party win 92 percent of the vote, a result condemned as fraudulent by dissidents.
The Citizens for Innovation (CI) opposition group, which secured one out of the 100 seats in the legislature, later reported that at least 50 of its members were detained after the ballot.
Its leader, Gabriel Nse Obiang, denied on Wednesday that the CI had played any part in the attempted coup.
Previous coup attempts
In 2004, mercenaries attempted to overthrow Obiang in a coup thought to be largely funded by British financiers.
Mark Thatcher, son of former British prime minister Margaret Thatcher, was reportedly involved in the funding.
He was convicted and fined in South Africa.