At least 41 people were killed and dozens of others were injured when a fire broke out at an overcrowded Indonesian prison when most inmates were asleep.
Firefighters extinguished the blaze - which was mostly contained within one block that housed prisoners jailed on drug charges - at around 3am local time and evacuated the victims.
The country's law and human rights minister Yasonna Laoly said a two foreign nationals - from South Africa and Portugal - were among the dead.
Television footage showed a massive fire raging through the prison block, with thick smoke billowing from the building as firefighters raced to put out the flames.
Authorities were still investigating the cause of the incident at Tangerang Penitentiary, just outside the capital Jakarta, but suspected an electrical fault may have been to blame.
The penitentiary department's website showed that the jail had just over 2,000 inmates, more than three times as many prisoners as it was designed to hold.
The block where the fire broke out had a maximum capacity of 40 inmates but housed 120, a penitentiary directorate general spokesperson told Metro TV.
Overcrowded, unsanitary conditions are common in Indonesian prisons, which contain about 270,000 inmates, and jailbreaks are frequent.
In 2019, at least 100 prisoners escaped from a jail in Riau province, Sumatra after a riot and fire broke out.
In April last year, Indonesia released some 29,000 inmates in a bid to stop Covid-19 from rampaging through a prison system known for its unsanitary conditions.
