Inspector-General of Police Khalid Ismail said the male suspect remained in custody in Thailand, and further investigations would be carried out in close cooperation with Thai authorities.

“Based on initial information from the Kedah police headquarters, the suspect was arrested with several rifles and rounds of ammunition while driving a vehicle bearing a Malaysian registration number.

“Investigations are ongoing, including allegations that the weapons were intended to be smuggled into Malaysia.

“So far, only one individual has been arrested, but the probe will be expanded to determine the modus operandi and the organisation behind this activity,” Bernama reported him as saying in Hulu Selangor.

It was previously reported that a Malaysian man was arrested with two M16 assault rifles and hundreds of rounds of ammunition, allegedly purchased in Thailand and intended to be smuggled into Malaysia.

Khalid gave his assurance that the Malaysia-Thailand border remains secure.

Separately, he said security for national leaders, including the rulers and heads of state, was being strengthened after a local woman rushed towards the Sultan of Perak, Sultan Nazrin Shah during the state’s National Day celebration on Sunday.