The driver collected the man, thought to be in his mid-20s, at Eiddwen Road and dropped him off at Milford Way in Penplas in the early hours.

As he left the vehicle the suspect opened the driver’s door, produced the tool and threatened the victim.

Police said the 63-year-old driver was uninjured but badly shaken, and have appealed for information.

Officers said the passenger was picked up shortly before 0150 GMT in a white Skoda Octavia taxi.

After being threatened the driver handed over his black money bag which contained a quantity of cash together and a black Samsung mobile phone.

The suspect then made off in the direction of Glenside Road.

He was described as a white male, about 25 years of age and about 5ft 7in to 5ft 8in.

He was of slight to medium build and was wearing a light coloured woollen jacket, a multi-coloured bobble hat with ear muffs, a dark scarf which covered the lower part of his face, and light-coloured training shoes.

Det Sgt Nicola Richards said “This was a totally unprovoked attack on a taxi driver going about his normal business and fortunately he was unharmed.

“I am appealing to anyone who witnessed the incident or has any information as to the identity of the suspect, to come forward.”

source: http://news.bbc.co.uk/1/hi/wales/south_west/8452409.stm