A dip in world oil prices has had little effect on the cost of petrol at UK pumps.

Oil has gone down by $10 a barrel but this has led to only a 0.5p drop in the average price of a litre of petrol in the UK, says the AA.

Average UK petrol prices are now 136.93p a litre - a 1.14p rise on the mid-April average and just off the record high of 137.43p set last week.

Average diesel prices were 141.99p a month ago, 143.04p last week and 141.49p now.

Petrol is now costing on average 15.43p a litre more than a year ago, with a two-car family spending £32.76 a month more on petrol than last May.