Inspector-General of Police Razarudin Husain said the preliminary investigations had focused on that aspect.

“But further investigations found that there were no links to JI,” he told FMT, in confirming the “lone wolf” theory that home minister Saifuddin Nasution Ismail had put forward earlier today.

Razarudin was asked to clarify his statement yesterday in which he said the man was believed to have been a JI member.

This morning, Saifuddin said the attacker was believed to have acted alone when revealing that the 21-year-old man was not linked to JI.

Razarudin also said all seven suspects who were remanded in connection with the attack are Malaysians, Bernama reported.

“None of them are Singaporeans as reported,” he was quoted as saying.

Harian Metro had reported that a Singaporean was among the seven.

In yesterday’s incident, the masked man attacked the Ulu Tiram police station at about 2.45am, armed with a gun and a parang.

He killed two constables – Ahmad Azza Fahmi Azhar and Syafiq Ahmad Said – and injured a corporal before being shot dead at the scene.