Updated

The Latest on the police operation in Brussels (all times local):

3:10 p.m.

Belgian police say an incident involving a suspected armed man in Brussels is not terror-related.

Brussels police spokeswoman Kathleen Calie said Thursday that officers from Belgium's special federal force were deployed to the Forest suburb following witness accounts that an armed person could be at large.

A search of one building produced nothing, and a second search was ongoing.

Calie said "we can rule out terrorism."

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2:10 p.m.

Belgian police have sealed off part of a Brussels suburb amid media reports that an armed man could be at large.

Associated Press television images Thursday showed armed police officers hiding behind buildings and staking out a building rooftop in the Forest neighborhood of the Belgian capital.

A police helicopter flew overhead.

Broadcaster RTL quoted Forest mayor Marc-Jean Ghyssels as saying that police "suspect the presence of an armed man."

A suspect in the deadly Paris attacks in November 2015, Salah Abdeslam, hid in Forest and was caught up in a shootout with police in a nearby apartment.

There was no immediate indication that Thursday's incident is terror-related.