A massive fire swept through a crowded river ferry in Bangladesh early Friday, leaving at least 39 people dead and 70 injured, officials said. Many passengers leapt from the vessel into cold waters to escape the blaze.

Also read: More Tiananmen massacre memorials removed in Hong Kong

It took 15 fire engines two hours to control the fire and another eight to cool down the vessel, according to fire officer Kamal Uddin Bhuiyan, who led the rescue operation. Afterward, the blackened hull of the ferry sat anchored at the river’s edge. Many anxious relatives gathered on the banks, while divers continued to search the waters.

The blaze broke out around 3 a.m. on the MV Avijan-10, which was carrying 800 passengers, many of whom were traveling to visit family and friends for the weekend, officials said.

Also read: Yes, there is a Santa Claus. And no, COVID-19 won’t stop him

“I was sleeping on the deck and woke up hearing screams and a loud noise,” survivor Anisur Rahman told reporters, adding that he saw smoke coming from the back of the ferry. “I jumped into the freezing water of the river in the thick fog, like many other passengers, and swam to the riverbank.”

Police officer Moinul Haque said rescuers recovered 37 bodies from the river, while two people died from burn injures on the way to the hospital. All of the 70 injured were hospitalized, including some with severe burns.

Also read: Explained: What will judge weigh in sentencing Kim Potter?

Ferries are a leading means of transportation in Bangladesh, which is crisscrossed by about 130 rivers, and accidents involving the vessels are common, often blamed on overcrowding or lax safety rules.

The ferry was traveling from Dhaka, the capital, to Barguna, about 250 kilometers (155 miles) to the south. It caught fire off the coast of Jhalokati district on the Sugandha River, toward the end of the journey.

Also read: South Korea ex-President Park Geun-hye, jailed for corruption, is pardoned

Bhuiyan said the fire may have started in the engine room. The government set up two committees to investigate the blaze and ordered them to report their findings in three days.

In April, 25 people died after a ferry collided with another vessel and capsized outside Dhaka.