Two of the Passengers Are a Prominent Businessman and His 19-Year-Old Son

The British businessman Shahzada Dawood, 48, and his son, Suleman, 19, are aboard the missing submersible, according to a statement from the Engro Corporation, based in Karachi, Pakistan.

The elder Mr. Dawood, a scion of one of Pakistan’s wealthiest families, is a vice chairman of Engro and has a background in textiles and fertilizer manufacturing. He has served on boards of directors in a variety of industries, according to the World Economic Forum website.

He is also a member of the Global Advisory Board for Prince’s Trust International, King Charles III’s charity. His father, Hussain, was one of the charity’s founding patrons, the trust said in a statement.

Mr. Dawood and his son are British subjects. Mr. Dawood and his wife, Christine, also have a daughter, Alina.

“We are shocked by this awful news, praying for a rescue and sending our thoughts to his family during this deeply challenging time,” Will Straw, the chief executive of Prince’s Trust International, said in a statement.

According to a post on the website of the SETI Institute, a scientific organization where Mr. Dawood is a trustee, the businessman is an ardent animal lover. The Engro Corporation said his interests include photography, especially wildlife photography, and exploring different natural habitats.

The company said Suleman Dawood is a big fan of science fiction literature, plays volleyball and takes a keen interest in solving Rubik’s Cubes.