Naila Anwar, the sister of missing teen Nida Ul-Naseer, made an appeal to the 18 year old to come home. She said: "We all love you Nida, just come home."
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Local authorities said the move is necessary to "avert the growing number of deaths and increasing harm linked to psychoactive substances".
Sunny and bright spells for most of us this afternoon, feeling pleasantly warm.
North Wales Fire and Rescue Service say incidents of deliberate fires are more common during the school holidays.