Bombing attacks at the main airport and a metro station in Brussels have killed 34, and injured at least 130 more. They're believed to have occurred in response to the arrest of an ISIS terrorist apprehended over the November Paris terror attacks.
US Presidential candidate Donald Trump gave his response:
In an interview in January, a couple of months ago, Trump had pointed to Brussels as an Islamist "hellhole":
11 days ago - a week-and-a-half before today's attacks - a Belgian political leader issued this video:
The attack comes on today's latest round of SuperTuesday voting for the US presidential primaries.