At around 7:10am this morning (July 31) officers received reports that a masked man had entered the A and H convenience store on Lorne Road, Thurnscoe and threatened staff with a knife.
The shopkeeper confronted the offender, who is reported to have run from the store and got into a silver Vauxhall Astra waiting outside.
The vehicle was then driven onto Canberra Rise in Bolton upon Dearne where it was in collision with a fence. Two men were seen running from the scene.
Both men, who officers believe to be involved in the robbery, remain on the loose.
Police incident Woodhouse Sheffield: Two men and a woman injured after large fight breaks out on Market Square
Sheffield fire: Crews tackle blaze in Wharncliffe Woods near Oughtibridge as heatwave continues
Sheffield fire: Video shows firefighters battling blaze at Wharncliffe Woods near Oughtibridge
Sheffield Crown Court: Here are the biggest cases from the last week including paedophile sting
Sheffield weather: Heavy rain set to lash city as Met Office extends thunderstorm warnings until Tuesday
Officers have arrested a 25-year-old man and 19-year-old woman, both from the Worsborough area, on suspicion of conspiracy to commit an armed robbery.
Anyone with information should contact South Yorkshire police on 101 quoting incident 142 of July 31 2018.