A Panamanian national who committed suicide on Monday is the seventh person in the custody of U.S. Immigration and Customs Enforcement since October, the start of the fiscal year.

According to an ICE statement, Jean Jiménez-Joseph, 27, was found unresponsive in his cell with a sheet around his neck at Stewart Detention Center in Georgia. He was later pronounced dead at a hospital.

Jiménez-Joseph's cause of death was described by ICE as "self-inflicted strangulation." According to ICE, he had been in solitary confinement for 19 days before taking his life, and federal authorities are now probing Jiménez-Joseph's death.

"ICE is firmly committed to the health and welfare of all those in its custody and is undertaking a comprehensive agency-wide review of this incident, as it does in all such cases," immigration authorities said in a statement. "Fatalities in ICE custody, statistically, are exceedingly rare and occur at a fraction of the rate of the U.S. detained population as a whole."

According to ICE, Jiménez-Joseph was apprehended in March in North Carolina after being convicted of motor vehicle theft in January. He was undergoing deportation proceedings.

The Stewart Detention Center has more than 1,700 beds and is run by private prison company CoreCivic.

According to a report by Project South and the Penn State Law Center for Immigrants' Rights Clinic published earlier this month, the conditions at the Stewart Detention Center and the Irwin County Detention Center, also in Georgia, are "deplorable and include: threats of force-feeding for participation in hunger strikes, sexual abuse, lack of clean drinking water, lack of adequate access to legal materials or attorneys, and labor for just $1 per day."

However, Jiménez-Joseph's death is the first at Stewart in more than eight years, ICE said.

In a Tuesday tweet, Project South Advocacy Director Azadeh Shahshahani called Jiménez-Joseph's death a "horrific tragedy that could have been prevented." CoreCivic did not respond to a Washington Examiner request for comment.