Detectives are appealing for information about two muggings in two days in Huddersfield.
The first happened on Willow Lane East last Tuesday at around 11pm.
The victim - a Polish man in his 50s - was walking home when he was approached by a man who asked him for a cigarette.
When he refused, he was hit and fell to fall to the floor. He passed out and when he came round discovered that his cigarettes, some cash and a door key had been stolen.
The suspect is described as an Asian man, aged 20 to 30, 5ft 7ins tall of an average build with short dark hair. He was with two other men.
The second robbery happened on Honoria Street the following day at around 7.45pm.
The victim - an Asian man in his 20s - walked past a man who grabbed his shoulder and demanded the victim’s mobile phone.
He searched the victim and took his watch and some money before making off.
The suspect is described as a black man, 6ft tall, of medium build with a dark stubbly beard.
He was wearing a black hooded top and was with an Asian man.
Anyone with any information about either of the robberies is asked to contact Detective Constable Nicola Holdsworth of the Kirklees Robbery Team on 101 or call Crimestoppers, anonymously, on 0800 555111.