A tourist yacht sank in the Red Sea on Monday after warnings of rough waters and 16 people were missing, Egyptian officials said.

The governor of the Red Sea region, Amr Hanafy, said rescuers saved 28 people from the vessel south of the coastal town of Marsa Alam, and some were airlifted to receive medical treatment. Hanafy visited the site where the vessel sank, according to a Red Sea Governorate update on Facebook.

A total of 44 people were on board the yacht, including 13 Egyptians, who include crew members, and 31 foreign nationals from the United States, Germany, United Kingdom, Poland, Belgium, Switzerland, Finland, China, Slovakia, Spain and Ireland.

The governor confirmed that rescuers were still searching for the missing, including four Egyptians and 12 foreigners. Meanwhile, those who survived suffered only bruises and abrasions and were taken to a hotel in Marsa Alam in good condition.

The boat, named Sea Story, had no technical problems, obtained all required permits prior to the trip, and was last checked for naval safety in March, according to officials.

Crew, tourists say large wave hit boat

Preliminary reports, based on statements from the yacht crew and tourists, said a large wave crashed into the boat, causing it to capsize, according to the governorate's update.

Some of the passengers were inside the cabins when the incident unfolded within minutes, according to the statements.

The U.K. Foreign Office said it was providing consular support to "a number of British nationals and their families" after the sinking. Ireland's Department of Foreign Affairs also told The Associated Press in an email that it is "aware of this incident and is providing consular assistance" without revealing further details.

The governorate received a report shortly before dawn Monday of a distress call made from the yacht, which had left Marsa Alam for a five-day journey.

It was not immediately clear what caused the four-deck, wooden-hulled motorized yacht to sink. But the Egyptian Meteorological Authority on Saturday warned about turbulence and high waves on the Red Sea and advised against maritime activity for Sunday and Monday.

A person answering the phone at the company that operates the yacht, Dive Pro Liveaboard in Hurghada, Egypt, told The Associated Press they have "no information" and hung up.

According to its website, the Sea Story was built in 2022 and can hold 36 passengers.

The Egyptian military was co-ordinating rescue operations with the governorate.

Many tourist companies have stopped or limited traveling on the Red Sea due to the dangers from conflicts in the region.