In order to ensure the safety of the police and the army the authorities asked users of social media networks to desist from disclosing details of police operations in their area.
The request was followed by almost everyone using social media. Unable to tweet about the events that were unfolding, the twitter-users decided to turn their attention to something else to while away the time.
With cats a constant source of laughs on the internet and (for those that have them), in the home. Twitter-users egged each other on to post the craziest images of cats they could find. At one point the #Brussels Lockdown was almost exclusively filled with photos of felines with the occasional dog for good measure.