Police have released CCTV images of a man with a little girl amid reports of a child abduction near a Brighton shopping centre.
Officers received a report that a man may have picked up a child and walked off at the junction of Western Road and the western entrance to Clarence Square in Brighton between 3.10pm and 3.20pm on Monday.
No reports of a missing child have been received, Sussex Police said.
Enquiries are being made to try and establish whether the child was with their parents or another family member.
A white man, aged around 70, in a green coat was seen interacting with a child described as a white girl with blonde hair and wearing a pink coat.
Officers have made a wide search of the area and the police helicopter has also been searching.
Superintendent James Collis said: "From all our enquiries we think the man and child in this image may be the ones our original caller is referring to.
"Active enquiries are continuing but we are also considering the possibility that the man and child are family members or at least known to each other, and that the caller may have misinterpreted what they saw but was nevertheless acting in perfectly good faith.
"If you are that man, or a family member or friend who has information about this incident, please get in touch with us as soon as possible by ringing 101 quoting Operation Boxworth, so that we can meet you and confirm that all is well with you and the child.
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"And if anyone else recognises these people we also ask them to call us right away."
:: Anyone with information should call police on 101.