Lockdown

Belgian police killed a suspect armed with an assault rifle after four officers were wounded on March 15 in a raid on a Brussels apartment linked to investigations into November's Islamist attacks in Paris, prosecutors said.

With Paris being attacked by terrorists, US issuing a travel alert and Brussels being under a security lockdown amid a manhunt for one of the suspected attackers responsible for the Paris attacks, many people might choose to stay home rather than travelling.

Europe has been struggling for some time to cope with its disgruntled Muslim minorities, increasing refugee flows, and homegrown terrorists who radicalize through global jihadist cells and gain experience on the ground around the world before returning to create trouble. Europe-wide tension has recently increased following the terrorist attacks in Paris on Nov.

#BrusselsLockdown has inspired a social media storm as people started sharing pictures of cats after police requested citizens not to tweet about the lockdown

Sixteen people have been detained after an hours-long police operation in Brussels on Sunday, Belgian police have confirmed.

Most media outlets quote officials as saying that Salah Abdeslam, the man sought over the attacks in Paris last Friday, is not among the detained.