Police are concerned for the welfare of a missing 13-year-old girl who is believed to be with her mum.

Denisa was last seen on August 5 in Croydon.

She is believed to be with her mum but police are concerned for her welfare and are urging the pair to contact officers.

Call 101 quoting reference number 6849/05Aug with any information.

Croydon Police tweeted: "#APPEAL | Can you help us find #missing 13-year-old Denisa who was last seen on Friday, 5 August in #Croydon?

"Although she's believed to be with her mother, we're concerned for her welfare and urge them to make contact with us.

"Please call 101 and quote 6849/05Aug or Tweet @MetCC."