Nineteen people have died and twenty-four survived after a Tanzanian passenger plane crashed on Sunday.

According to Precision Air, (Tanzania’s largest privately-owned airline) in a statement revealed that the crash occurred as a result of bad weather, The Punch reports.

The airline said, “Precision Air regrets to confirm that 19 fatalities and 24 survivors have now been reported by the emergency services at the scene of the accident involving PW-494 which crashed at Lake Victoria in Bukoba today,”

The country’s Prime Minister Kassim Majaliwa, while speaking to reporters said, “All Tanzanians join you in mourning these 19 people … who have lost their lives.”

Aljazeera reports it was not immediately clear if the 19 victims included rescuers who drowned or whether the 48-seater aircraft had more people on board than previously disclosed, a regional official said.

“We are continuing to investigate,” said Chalamila. “There is a possibility that two people were not onboard but died during the rescue effort.”

Since the incident occurred, rescue mission has continued, Precision Air said.