Singapore is examining companies suspected of causing haze through illegal fires, according to Prime Minister Wong. The government will take action under the Transboundary Haze Pollution Act when necessary.

The investigation follows recent spikes in haze levels affecting the region. Wong stated that the government is committed to holding accountable those responsible for fire-related pollution. The Transboundary Haze Pollution Act allows for penalties including fines and imprisonment for violations.

This follows years of disputes over cross-border haze, with Indonesia frequently cited as a source. Singapore has previously imposed fines on Indonesian companies for illegal burning. The current probe aims to expand responsibility to private firms operating in the region. Environmental groups have called for stricter enforcement to protect public health.