Citigroup banker Shawn Miller found dead in flat, with his throat cut

A prominent Citigroup banker has been found dead in the bath of his Manhattan flat, with his throat cut.

Shawn Miller, 42, was a Citigroup managing director who was global head of environmental and social risk management.

Ambulance crews declared him dead at his apartment after responding to an emergency call on Tuesday afternoon.

Investigators were waiting for the medical examiner to determine a cause of death, police said, adding that he had suffered a "neck laceration".

The New York Post reported that Miller's throat was slashed and that no knife was recovered, leading authorities to suspect foul play.

The Wall Street Journal, citing a police official, reported that police were seeking to talk with a man who was seen in a lift with Miller before 6.30pm on November 15 and appeared to have a dispute with him.