JAKARTA, Indonesia – National Police spokesman Ronny F. Sompie told reporters Monday (August 19th) that police had captured 23 of the 30 prisoners who escaped Sunday from the overcrowded Labuhan Ruku prison in North Sumatra, local media reported.

"Three prisoners surrendered themselves to Labuhan Ruku prison guards and the other 20 are currently being detained in various police stations in North Sumatra," Ronny said, adding that police had been receiving significant help from local military personnel, according to The Jakarta Post.

Hundreds of inmates set the prison on fire Sunday to protest overcrowding, where an estimated 800 prisoners are housed in a space built to only hold 300.

The 30 escaped by climbing over a prison wall. Ronny confirmed none were convicted terrorists. "Most of them are serving time for drug crimes, while the remainder are murder and robbery convicts."

Interpol issued an alert saying it suspected al-Qaeda was involved in two jailbreaks in Indonesia in July and other escapes around that time in other countries, AFP reported.