Indonesia's Environment Ministry has identified eight companies with Malaysian links in Riau and Jambi that may be contributing to the haze that is now smothering Malaysia and Singapore.

According to to Environment Minister Balthasar Kambuaya, fires were discovered on plantation concessions owned by those companies, reported Singapore daily The Straits Times .

"If there is enough evidence, we will take them to court. Our investigators are still on the ground for further investigation," he said yesterday.

Another 14 companies are currently being investigated, he said.

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