Gunmen have released 11 passengers who were abducted during a train attack in northern Nigeria at the end of March, a government minister said, though dozens of others are thought to remain in captivity.
Gbemisola Saraki, the minister of state for transportation, said in a statement late on Saturday that the government was working to ensure all the kidnapped passengers were released.
The freed passengers were taken to a hospital in Abuja. Saraki did not say how and where they were released, or if ransom was paid.
