It is believed unexploded bomb was uncovered during digging at Roundhouse Way near the station.

A bomb disposal team has been sent to the station to determine whether it is a danger to the public.

The train station was closed for more than 30 minutes, but re-opened to the public at about 0850 GMT on Wednesday.

A small area around Pride Park is still cordoned off while experts assess the danger.

Derbyshire police spokesman said: "The suspected bomb is around three or four inches in diameter and has fins on the back."

A spokeswoman for Midland Mainline said services have been affected by the evacuation.