Nigerien President Mohamed Bazoum has been under house arrest since July 26.

The United States expressed "growing concern" for the safety of Niger's democratically elected president who remains under house arrest amid an apparent coup there.

U.S. Department of State spokesperson Matthew Miller said the U.S. had "direct contact" with Nigerien military leaders.

Vets ask Pentagon leader to take new look at Niger probe after the '3212 Unredacted' film aired on Hulu.

ABC News probes the mystery behind the 2017 deaths of four Green Berets in Tongo Tongo, Niger, in the documentary "3212 UN-REDACTED," coming Nov. 11 to Hulu.

ABC News documentary "3212 UN-REDACTED" probes the deaths of four soldiers killed in a 2017 ISIS ambush. Their families accused the Pentagon of lies and betrayal

The families of the four American Green Berets killed in a 2017 ambush by ISIS in Niger accused the Pentagon of allegedly covering up the details of their deaths and mission.

ABC News’ Ian Pannell spent years digging into why American soldiers were killed in October 2017, and the decisions and mistakes made after a lengthy Pentagon investigation.

The families of four U.S. soldiers, who were killed in the 2017 Niger ambush, are blasting the Pentagon's decision not to punish higher-ranking officers for their role.

A four-star general is to review the investigation into the deadly, 2017 attack in Niger that killed four soldiers and decide if more disciplinary actions are warranted.

Gen. Thomas D. Waldhauser gave remarks following the investigation of the Oct. 4, 2017, attack that killed four U.S. soldiers.

A military probe found failures led to the ambush of American soldiers in Niger.

Four Army special operations soldiers killed in action during an ambush in Niger last October were part of a largely inexperienced and lightly-armed team.

Johnson and three other U.S. soldiers were killed in October.

The U.S. soldiers were ambushed by an ISIS-affiliated group in Niger in October.

The operation in Niger was a kill or capture mission.

“It’s our responsibility, and we should be embarrassed, at best," he said.

The Oct. 4 assault left four U.S. soldiers dead.

Four U.S. soldiers were killed in an ambush earlier this month.

U.S. intelligence officials are examining video of a militant group in Niger, looking for clues to the identity of the men who ambushed and killed four U.S. soldiers.

ABC News has learned chilling new details about the Niger mission gone wrong.

The statement came after the U.S. provided a timeline of the deadly the ambush.

Trump's promised $25,000 check from July finally arrived.

Myeshia Johnson spoke to ABC News about her husband's death

Myesha Johnson said she wasn't allowed to see her husband's body.

La David Johnson was killed in an ambush.

McCain was a guest on "The View."

Four U.S. soldiers died in an ambush in the country earlier this month.

Two weeks later, the details of the deadly incident remain unclear.

U.S. Army Sgt. La David Johnson, who was among four American service members killed in Niger earlier this month, was laid to rest in Florida on Saturday.

New details about how the Niger ambush unfolded have emerged