Indonesian President Susilo Bambang Yudhoyono said Tuesday he was deeply concerned with the crash of a passenger plane and the sinking of a ferry in the last few days that might have killed hundreds of people.
A Boeing 737-400 plane with 102 people onboard crashed into a mountain in the West Sulawesi province Monday, killing at least 90 people.
Earlier on Friday, a ferry carrying 628 people sank off the Java coast with some 400 passengers reported missing.
On Thursday, another ferry overturned off Sumatra and some 26 passengers were missing.
Speaking at a ceremony to mark the resumption of the Jakarta Stock Exchange, Susilo blamed violent weather for the disasters.
"The culture of becoming vigilant to the weather factor has not existed among our societies... I have told the transport minister to investigate if our ships are built and designed to be capable of overcoming bad weathers," he said.