Described as a skinny man measuring between 165 and 170 tall, the robber entered the store at 3.30am and threatened one of the employees with a knife before escaping with B21,000 in cash.
The 7-11 employee, Thanit Kittayapipat, 20, told police the man entered the store while he was stocking shelves.
“The robber was holding a kitchen knife. He used a blue shirt to conceal his face and was wearing white gloves,” said Thanit.
“At first I told him that I couldn't open the tills but he threatened me with the knife and said he would stab me,” said the employee.
The robber spoke Thai with a Burmese accent, the employee told police.
After reviewing CCTV footage, police have concurred that a tall man in his thirties fitting the suspect's description was filmed making his way to the store from the direction of the nearby Big C superstore. However, he had concealed his face before entering the store.
Investigating officers expressed their surprise that the recent shooting by police of a suspected serial 7-11 thief earlier this month had not put off other wound-be robbers.