Usher's Ex-Wife Wants Full Custody After Son Nearly Drowned [Frightful 911 Call]

Usher's 5-year-old son nearly drowned in a pool accident on Friday and has been in a coma ever since, prompting his ex-wife, Tameka Foster Raymond to file for custody of their two children, TMZ reports.

The accident happened on Monday, when Usher V, or Cinco as he's called, reached into a pool drain to retrieve a toy and got stuck. Usher's aunt, Rena Oden, who was supervising the boy, went in to rescue him but it wasn't until three other adults intervened that he was freed and then rushed to a hospital. Cinco is expected to make a full recovery.

The R&B singer and "The Voice" judge was not at the home where the terrifying incident occurred, a report said. However, Raymond is holding him responsible for the incident and filed paperwork asking for an emergency custody. The former couple infamously divorce in 2009 and in 2012, Usher received primary custody of their two sons.

According to the filing, Tameka believes that Usher's aunt was 'not on the ball' when the incident occurred. She also claims that Usher is '85% of the time out of town' and therefore delegates the care of the children to other people.

The 911 call made during the accident was released Tuesday.

"I need an ambulance," says the breathless caller in the audio clip.

"My nephew was in the pool ... and I couldn't get him ... I couldn't get him..." says Oden. "Oh..."

The dispatcher urges her to "stay with me" and to "breathe."

In a sad twist of events, this is not the first scare that Tameka has had relating to her children. She lost a child, fathered by a different man, in a jet ski accident in 2012 when a ski operator ran over the 11-year-old boy and killed him.

The emergency custody hearing is scheduled for Friday, the report said.