The bomb alert of the European Parliament (EP) building was lifted after investigation on Monday, according to the Belgian Police.
Security service of the EP said they would step up patrol in the future.
The order has returned to normal around the EP building, observed by Xinhua.
Belgian Police evacuated part of EP building after bomb alert on Monday.
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An investigation over suspicious vehicle parking nearby EP building was launched in the center of Brussels at around 1100 GMT.