Two young children were taken to hospital after being bitten by a pair of Jack Russells.
Police have launched an investigation after the siblings, aged two and four, were attacked by the dogs in Whaley Bridge.
The children were taken to hospital for a check-up after suffering bruising to their bodies.
The attack took place at about 11am on Monday, January 27, on the bridge that leads from Wheatsheaf Road to Whaley Bridge Memorial Park, close to the dam at Toddbrook reservoir.
Police are now trying to trace the dogs' owner, described as a white woman in her 60s wearing a 'bright orange coat'.
The dogs are described as 'white with brown patches'.
In a statement Derbyshire police said: " We are investigating reports that two young children have been bitten by a pair of dogs in Whaley Bridge.
"A mum has told us that she was walking with her children, aged two and four, on the bridge that leads from Wheatsheaf Road to Whaley Bridge Memorial Park, when the children were approached by two Jack Russell dogs and bitten on their bodies.
"The youngsters suffered bruising and were taken to hospital for a check-up.
"We are trying to trace the owner of the dogs, who described as a white woman in her 60s who wore a bright orange coat."
Anyone with information is asked to contact PC Lora Holdgate quoting reference 20000052932, by sending a direct message to Derbyshire Police via Twitter or Facebook, completing the contact form at derbyshire.police.uk, by calling police on 101, or Crimstoppers anonymously on 0800 555111.
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