Two men have been injured, one seriously, in a double stabbing in Long Eaton.
Derbyshire Police said they were called to Lynden Avenue at 08:50 GMT on Monday and found both men with stab wounds. One was taken to hospital while the other suffered only minor injuries.
The force said a man in his 20s was arrested on suspicion of affray and remains in custody.
The men are known to each other and there is no wider risk to the public, officers added.