Indian authorities are questioning an internet cafe owner and two other people as they scramble for leads into a powerful briefcase bomb that tore through the crowds outside a New Delhi courthouse, killing 12 people.

A bomb hidden in a briefcase ripped through a crowd of people waiting to enter a New Delhi court today, killing 11 people and wounding scores more.

India issued a terror alert at its airports today after receiving reports that al-Qaida-linked militants were plotting to hijack a plane.