The UK's Competition and Markets Authority said it was seeking comments from interested parties and stakeholders before Dec. 3 to assist in its decision of opening a formal investigation if needed.

Korean Air said in November last year it would spend 1.8 trillion won ($1.52 billion) to become Asiana's top shareholder.

($1 = 1,186.9500 won)

(Reporting by Pushkala Aripaka in Bengaluru; Editing by Shounak Dasgupta)