WASHINGTON, Dec 29 (Reuters) - The National Transportation Safety Board is leading a team of U.S. investigators to help South Korea's aviation authority in its investigation of the Jeju Air crash in Muan, the agency said on Sunday. Planemaker Boeing and the Federal Aviation Administration are participating, NTSB said. ...

* Azerbaijan says plane was shot at from Russia * Aliyev says plane was jammed electronically * He says some in Russia tried to cover up the causes * Putin apologised to Aliyev for incident in Russian air space * Pilots lauded for handling of crashed Azerbaijan plane (Recasts with Azerbaijan's president saying the plane was shot at from Russia,...

* Experts say many questions yet to be answered * They see it as unlikely that a bird strike would cause landing gear malfunction * Jeju Air says only that investigation is underway * Deputy transport minister says runway length not a contributing factor (Adds comments from transport ministry, Jeju Air, background on how the investigation will proceed) By Bart...

ZURICH (Reuters) - Swiss pharmaceutical company Roche is not planning job cuts and its business is healthy, CEO Thomas Schinecker was quoted as saying by a Swiss newspaper on Sunday. Roche's share price has fallen far below peaks it scaled in April 2022 and the CEO was questioned about the company's staffing plans in the context of recent setbacks in...