Authorities say Typhoon Namtheun was heading north towards the southern main island of Kyushu with gusts of up to 198 kmh.
The police say the accident took place at the junction of Bukit Panjang Ring Road and Bukit Panjang Road.
Although no group has claimed responsibility yet but Duterte says it could possibly be a reprisal from extremists.
Separatists say that they would surely consider the creation of "safety zones" which is proposed by the Thai government.
Authorities say the region experienced a swarm of aftershocks, several of nearly 6.0 magnitude, for many hours
Authorities say that people who would be tested positive could go through rehabilitation before they are allowed to get admission to college.
Duterte is all set to visit Indonesia as a part of his ASEAN trip.
The police are investigating whether the accident was due to reckless driving or mechanical problems.
Singapore Civil Defence Force spokesperson says an investigation is ongoing to find out the cause of the fire.
The United States Geological Survey says the epicentre of the quake was located 89 km north-east of Rabaul.
Authorities say Typhoon Lionrock dumped heavy rainfall in northern Japan leading to floods and triggered power outages.
Philippine Foreign Minister Perfecto Yasay says they are trying to convince China on the UN-backed tribunal ruling.
A strong typhoon is on course to hit on the northeastern part of Japan on Tuesday afternoon.
According to the reports, the gunman was the son of the construction firm owner and was an acquaintance of the victims.
Typhoon Lionrock is approaching the eastern coast of Japan with a speed of 25 kilometres per hour and gusts as strong as 134 mph.