Police are appealing for witnesses to two knifepoint burglaries in Ashland and Coffee Hall on Tuesday which are thought to be linked.
The first happened at 7.50pm as two 18-year-old girls were walking through the Oldbrook estate. As they reached the underpass leading to Leadenhall, close to Coffee Hall, a man approached them to ask the time.
The women later saw the same man running towards them. He took one of them by the arm and held a knife to her side and demanded her phone. The woman tried to plead with him but he persisted until she handed it over.
He demanded the other girls phone, by pointing the knife at her, he then told them to empty their pockets and searched through their handbags. He finally made off towards Leadenhall.
The man is black, late twenties to thirties around 6ft tall of slim build wearing a hat with a slim rim. He was dressed all in black in a long black coat with a fur lined hood and dark coloured trousers.
In the second incident, an 18-year-old-woman was walking through Ashland at 8.10pm on Newington Gate when a man approached her asking for the time. When she looked at her phone, he snatched it out of her hand and demanded her other property.
She tried to get her phone back but he produced a knife and threatened her, before running off towards Marlborough Street.
The offender was a black man, around 5ft 10ins tall wearing a dark trench coat, with fur edging, he wore dark trousers.
Detective Constable Samantha Reynolds, from Milton Keynes police station, said: “We are appealing for witnesses after two robberies which are thought to be linked, if anyone has any information please do get in contact with police via Thames Valley Police Enquiry Centre on 101.”
Witnesses can also call Crimestoppers, anonymously, on 0800 555 111.