People pay their respects in front of a makeshift memorial at the entrance of the Jewish Museum in Brussels, on May 25, 2014, where a deadly shooting took place the day before. (GEORGES GOBET/AFP/Getty Images)

A nationwide manhunt is underway in Belgium to find the shooter who opened fire at the Brussels Jewish Museum this weekend, CNN reports. The suspect shot and killed an Israeli couple visiting Brussels, a French volunteer at the museum, and a Belgian museum employee.

Brussels police released surveillance footage from the attack, which shows the suspect entering the building and opening fire with an AK-47 before quickly leaving, with the hope that the public can help identify the gunman. The New York Daily News posted the video of the suspect, who deputy prosecutor Ine Van Wymersch said “probably acted alone, was armed and well prepared.”

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