Latest: Quick action saved lives during Brussels attack, say Belgian officials

The quick shooting of an attacker who tried to detonate a nail bomb and shouted "Allahu akbar" at a Brussels train station averted fatalities, officials said, as Belgium increased security measures around the country.
The attacker was a 36-year-old Moroccan national not known to authorities for being involved in terror activities, federal magistrate Eric Van der Sypt told reporters.