Indonesian police will probe implication of its citizen in the killing of the half-brother of North Korea's top leader, a police spokesman said on Thursday, China's Xinhua news agency reported.

Siti Aishah, from Serang town of Indonesia's Banten province, was reportedly arrested by Malaysian authority along with another woman for alleged involvement in the assassination of Kim Jong Nam.

"I will check the information," said Inspector General Boy Rafly Amar, spokesman of the national police.

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Malaysian police said earlier that the 46-year-old Kim was found dead on Monday at the Kuala Lumpur airport. His body was taken to a hospital Wednesday for postmortem to ascertain the cause of his death.

Two female suspects who were captured by the surveillance footage at the airport had been detained. They hold Vietnamese and Indonesian passport respectively. -- Bernama