Brighton confirmed the news in a statement this evening that offered no reason for the surprise move, which comes three days after the Seagulls exited the play-offs at the hands of bitter rivals Crystal Palace.
The statement read: "Brighton & Hove Albion has confirmed that it has suspended its manager, assistant manager, and its first-team coach from their duties.
"The club will now follow its internal procedures with regard to this matter and will make no further comment at this time."
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Detectives have charged two men with the murder of Jason Martin-Smith in Hastings in 2001.
Thursday night's weather for the east of the region
Thursday night's weather for the west of the region