(JTA) — A Belgian news site reported that two of the three fatalities from the shooting at Brussels’ Jewish museum were an Israeli couple.

The third fatality was a female volunteer at the Jewish Museum of Belgium, according to an unconfirmed report Saturday night on the news site HLN.be, which is the online edition of the Het Laatste Nieuws daily. A fourth victim, whom HLN reported was a 23-year-old employee of the museum, is in hospital in critical condition.

Police has no suspects in custody, the news site also reported. Belgian authorities are yet to release the names of those who died in the museum and the fourth person, who is in hospital.

The shooter aimed for the victims throats and heads, witnesses told the daily.

According to HLN.be, police no longer suspect a person whom they detained shortly after the attack. that person is currently regarded as a witness, HLN.be reported.

Authorities are looking for the shooter, who was driven to the museum by a suspected accomplice in an Audi car, and the driver and are analysing security camera footage.