Gunmen have raided an off-campus residence in northwest Nigeria and kidnapped seven students

ABUJA, Nigeria -- Gunmen raided an off-campus residence in northwest Nigeria and kidnapped seven students, police said.

The attack occurred early Wednesday in the Kaura Namoda area of conflict-battered Zamfara state, police spokesman Yazid Abubakar said in a statement. One of the students escaped and was in custody.

The police spokesman said it wasn't clear where the students were taken but efforts were underway to rescue the remaining six.

Zamfara has been a hotspot for armed gangs that carry out kidnappings for ransom, with abductions of students increasing in recent years across the country.

A tally by local news outlet Premium Times found that at least 1,900 students have been kidnapped from 20 schools since the 2014 mass abduction of over 200 schoolgirls from Chibok in Borno state.

Sponsored Content by Taboola