India hangs 4 men over 2012 gang rape
India has executed four men for the gang rape and murder of a student on a Delhi bus in 2012.
Akshay Thakur, Vinay Sharma, Pawan Gupta and Mukesh Singh were sentenced to death by a trial court in 2013.
In a tweet, Indian prime minister, Narendra Modi said justice has prevailed.
Hundreds of police were deployed outside the jail to control a crowd that waited to celebrate the execution.
The crime had sparked enormous protests and global outrage.
