Story highlights
The man was wearing a winter coat when it was 32 C (90 F)
Brussels has been on heightened alert since terrorists killed 31 people in March
Belgian police shut down part of central Brussels for more than two hours Wednesday as anti-bomb officers investigated a suspicious man.
The man was seen with a wire hanging out of a winter coat while it was 32 degrees Celsius (90 degrees Fahrenheit).
The police operation brought part of Brussels to a standstill. A nearby library was evacuated as police set up a security perimeter.
But after hours of investigation, Brussels police said the man was not a threat – but rather a student researching radioactivity in the city.
The Belgian capital has been on high alert after terror attacks killed 31 people in March. Two bombs exploded at the Brussels Airport, and a third went off at a metro station.
ISIS claimed responsibility for the bombings, which also wounded 300 people.
CNN’s Brandon Miller and journalist Pauline Armandet contributed to this report.
