Brussels raises terror alert after Paris attacks

Belgium’s capital woke today to a security lockdown as the national crisis centre raised its terrorism alert to its highest level and at least one suspect from the Paris attacks remains at large.

Authorities across Europe, the Middle East and in Washington are trying to determine how a network of primarily French and Belgian attackers with links to Islamic extremists in Syria plotted and carried out the deadliest violence in France in decades – and how many may still be on the run.