Indonesian authorities deployed navy ships and helicopters Friday in the intensified search for 29 people still missing almost two days after a ferry sank near the tourist island of Bali. But the search was later suspended because of poor visibility.

Indonesian rescuers were searching for 29 people who remained missing Thursday after a ferry sank and six people died the previous night near Indonesia’s resort island of Bali.

An Indonesian ferry carrying at least 65 passengers sank in the Bali Strait on Wednesday night, leaving at least five people dead and more than 30 missing, according to local reports and Indonesia’s National Search and Rescue Agency,