A Yemenia Air plane carrying 153 people from the Arabian Peninsula country of Yemen to the island nation of Comoros has crashed in the Indian Ocean, a Yemen airport official said Tuesday.”The plane has crashed and we still don’t know exactly where. We think it’s in the area of Mitsamiouli,” Comoros Vice-President Idi Nadhoim told Reuters.

An airline official confirmed to Reuters that 142 passengers and 11 crew were aboard the Airbus 310 traveling from the Yemen capital San’a to Moroni, on the main island of Grand Comore.Ibrahim Kassim, a representative from regional air security body ASECNA, said the plane probably came down 3 to 6 miles from the coast, and civilian and military boats had been mobilized to start searching.

“We think the crash is somewhere along its landing approach,” Kassim told Reuters. “The weather is really not very favorable. The sea is very rough.” An official told The Associated Press most of the passengers on the plane were believed to be Comoros residents returning from Paris.

The Comoros is an archipelago of three main islands situated about 1,800 miles south of Yemen, between Africa’s southeastern coast and Madagascar.