Sandip Moneea, 41, Raj Theekoy, 33, and Avinash Treebhoowoon, 29, have already been charged over the killing One of the men arrested in connection with the murder of Michaela McAreavey in Mauritius has been released without charge.
Seenarain Mungoo, 39, is a security officer at the Legends Hotel and had been charged with conspiracy.
Four men are still being held in connection with the murder.
Mrs McAreavey, 27,the daughter of Tyrone Gaelic football manager Mickey Harte, was found strangled in her honeymoon hotel room in Grand Gaube.
Mr Mungoo is from Petit Raffray- the same village as Sandip Moneea – who is charged with murdering Michaela but has not confessed to the crime.
Sandip Moneea, 41, and Avinash Treebhoowoon, 29, are charged with Mrs McAreavey murder.
Raj Theekoy, 33, has been charged with conspiracy to murder.
In January Mr Treebhoowoon confessed to the killing.
A fourth man, Dassen Narayanen, 26, who also works for hotel security was charged with aiding to commit a crime.
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