The man suspected of shooting dead four people at a Jewish museum in Brussels was charged with murder on Wednesday, one day after being handed over to Belgium by French authorities.
"Since his arrival, he has been interrogated by the counter-terrorism unit of the federal judiciary police of Brussels, as well as by the investigating judge," the Belgian federal prosecutors' office said in a statement.
"He has been charged with murder in a terrorist context and an arrest warrant has been delivered on his behalf," it added.
Mehdi Nemmouche, a 29-year-old dual French-Algerian national, is the sole suspect in the May 24 museum shooting. He is believed to have spent time in Syria fighting alongside jihadist groups.
The victims in the museum attack were an Israeli couple, a French woman and a Belgian man.
Nemmouche was arrested at a bus station in the French port of Marseille six days after the attack.
He is expected to have a court hearing in Belgium on Monday and is being held at a prison in the southern city of Mons, the Belga news agency reported.
He was interrogated for three-and-a-half hours by investigators on Tuesday, but his lawyers said he refused to answer questions because the police has been leaking information to the media, Belga wrote.
"Mehdi Nemmouche has the right to serene justice and does not want his statements to turn up the next day in the tabloids," lawyer Sebastien Courtoy was quoted as saying.
He added that Nemmouche would not answer questions until the officers responsible for the leaks are removed from the case.
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