A Dutch national was arrested this afternoon while on the run in Cambodia after he allegedly smashed his Thai girlfriend with a tablet to death at their home outside of Bangkok.

Mathew Mannen, 40, was caught by border police at his hotel room in the Koh Kong province of Cambodia and confessed to murdering his girlfriend Pornpan Kaewkok-klang, 35, police said, because she went on Facebook despite his forbidding it.

Pornpan was found dead by her father yesterday at the home she lived with Mannen in Nakhon Pathom province. Police estimated she had been dead more than three days. With a large wound on her head, police concluded she was smashed with a broken Samsung tablet nearby.

A handwritten message in English, believed to have been written by Mannen and addressed to the deceased, was found on the wall.

Neighbors said they overheard the couple arguing on Saturday night before Mannen was seen driving off in a pickup truck hours later.

The suspect is currently detained at Khlong Yai police station in Trat province for further questioning, Khaosod and Thairath reported.

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