EU airports, subways increase security levels

UK, Dutch and Polish governments convene emergency meetings after Brussels attacks

Authorities in Europe have tightened security at airports, on subways, at the borders and on city streets after deadly attacks on the Brussels airport and its subway system on Tuesday.

The Paris airport authority said security was tightened at all Paris airports soon after the terror attacks in Brussels on Tuesday morning. Airports in London, Prague, Amsterdam, Vienna, and many others, also saw increased security.