KUALA LUMPUR, May 18 -- Singapore has issued an advisory for its citizens travelling in Malaysia to be cautious and alert following the Jemaah Islamiyah (JI) was linked to deadly attack at the Ulu Tiram police station near here yesterday.

In a press statement, Singapore's Ministry of Foreign Affairs (MFA) advised its citizens to exercise vigilance and take all necessary precautions to ensure their personal safety.

"Singaporeans who travel to Malaysia should eRegister with MFA through our website so that we can contact and assist you in an emergency.

"We also encourage all Singaporeans travelling abroad to purchase comprehensive medical and travel insurance," it said.

The statement added that Singapore strongly condemned the attack, wh...