Police are continuing to search for a 15-year-old deaf boy with autism who has been missing from his home in Schiedam since Friday evening.

Abdullah Mazmahor was reported missing from his home in Obrechtstraat by his mother, who believes he went out at around 11pm. Police are especially concerned because he left his jacket at home and does not have his regular medication with him.

Members of the public have been asked to check caravans, garden sheds and storerooms for the boy, who has a fascination with old appliances. ‘He’s interested in old things and antiques,’ his care worker Ivanka Buisman told NOS. ‘Rusty washing machines, old round plugs, preferably black.’

Buisman said Abdullah has learning difficulties and can only communicate using gestures. ‘He can manage in the outside world, but it’ll be hard for him without a jacket,’ she said.

Volunteers from Schiedam, Vlaardingen and Zoetermeer helped police with the search over the weekend, using search dogs and thermal imaging cameras. A local app messaging group has also been set up to co-ordinate information and updates.

Police believe Abdullah may have gone to Zoetermeer, where he attends school, or Vlaardingen. He is around 1.85m (6ft 1in) tall and was last seen wearing a cream and blue checked shirt, trousers and black trainers.

Any tips or sightings should be reported to the emergency hotline 112.

Update late December 4: Abdullah was found hiding in a shed on an allotment complex following a tip-off.