A delivery driver has been robbed outside a supermarket in Hamilton.
He was outside the Co-op in Mill Road at about 17:45 when another man threatened him with a weapon.
The attacker took his car keys and then ran off in the direction of Strathaven Road.
The suspect was described as being white, aged between 20 and 25, 5ft 7in tall and of slim build. He was wearing a dark tracksuit and white skip cap, with a tartan scarf covering his face.
Det Sgt Martin McKendrick, of Police Scotland, said: "Thankfully the delivery driver was not hurt during this incident but this was nonetheless a terrifying ordeal for him and it is imperative that we trace the callous individual responsible.
"I would appeal to anyone who was shopping in the Co-op store, or who was in the surrounding area around the time of the incident and may have noticed a man matching the above description, to please come forward."
Police are also investigating another robbery in Hamilton which happened less than two hours later.
That raid was on a McColl's Store in Fleming Way at about 19:15 on Wednesday.
A 23-year-old member of staff was not injured but was said to be "badly shaken" after being threatened with a knife. His attacker grabbed money from the till before running off.
The suspect is about 5ft 7in tall and was wearing a dark Parka jacket.
He was also wearing black jeans, black trainers with a white sole, and a white baseball cap.