Boko haram

The students are among more than 300 pupils and 12 staff seized by gunmen from St Mary's Catholic boarding school in Papiri village in the early hours of November 21.

A day earlier, Australia's Jewish community gathered at Bondi Beach for prayers, while hundreds of swimmers and surfers formed a huge circle in the waters off the beach to honor victims.

Here’s what to know about the recent wave of kidnappings and deadly attacks in Nigeria, who is behind them, and how the government is responding to the worsening security crisis.