Tonga Police has confirmed it has captured one of the two men on the run after escaping from its headquarters earlier this week.

On Wednesday, police put up a TP$5000 (approx. NZ$3400) reward for information leading to the capture of foreign escapees Liuaki Kokohu VI, a 35-year-old New Zealand citizen of Tongan descent, and Adam Hussein, a 35-year-old Fijian national.

A third escapee, 16-year-old male, who also escaped from custody at the Central Police Station in Nuku'alofa on Sunday was captured in the early hours of Tuesday morning in Mataika.

In a statement on Friday, Tonga Police confirmed the Fijian national Hussein was successfully apprehended on Thursday, 23 July, and is now back in custody.

Kokohu VI, who is considered a high-risk escapee due to his criminal history, remains on the run.

Police is advising anyone coming in contact with the fugitive not to approach him and urged to contact police immediately.

"Tonga Police remind the public that it is an offence to aid, harbour, or assist a person who has escaped from lawful custody."