A number of Asian countries are on high alert against terrorist groups that may be emboldened by the Taliban's takeover of Afghanistan.
The Indonesian government is stepping up vigilance. Officials say measures are being taken to prevent attacks in the country.
Indonesia has been hit by multiple terror attacks over the years by Al-Qaeda affiliates and supporters of the Islamic State militant group.
A bomb blast on Bali in 2002 killed more than 200 people. A senior official of Jemaah Islamiyah based in Southeast Asia was arrested last year on suspicion of involvement in the bombing.
Police arrested 53 people last month on suspicion of planning a terrorist attack. Those arrested include members of Jemaah Islamiyah and supporters of the Islamic State militant group.
In the Philippines, security officials are on alert for a possible resurgence of extremist groups that may be encouraged by events in Afghanistan.
Four years ago, the Islamic militant group Abu Sayyaf occupied the city of Marawi on Mindanao Island. Their aim was to build a base for the Islamic State group.
But they were weakened after five months of fierce fighting with the Philippine military. Some members escaped and have been carrying out sporadic suicide bombings in surrounding areas.
India is also on high alert for terror threats. Officials have been extra vigilant since terror attacks in Mumbai in 2008 killed 166 people. Since the incident, security has been tightened at shopping malls and other places where people gather.