Authorities in Nigeria say all hostages have now been released in what was one of largest mass kidnappings in the country's history.
Breakdown
- US launched strikes against ISIS in Nigeria, citing Christian persecution 4s
- Nigerian officials say collaboration targets terrorism, not just religious issues 1m 28s
- Over 200 schoolchildren and staff kidnapped in Niger State have been released 1m 56s
- Authorities revised the number of abducted from 315 to 230 3m 7s
- School kidnappings are a major security issue in Nigeria, often for ransom 3m 16s