A man has been released on bail in relation to suspected explosive substances discovered at a house in Telford.
Police have now concluded their investigations at the address in Leonards Close.
Inquiries are continuing to find out what the substances were that were found at the property.
More top news
There are reports of an explosion on Enterprise Way in Derby.
Officers were called to the property, at the junction of Mere Road and Diseworth Street, in Leicester shortly after 7am yesterday.
Derbyshire police have put a cordon up to close the Wardwick outside Turtle Bay to Cheapside following the incident at at around 5am.