Dhaka, July 1 -- Oil prices edged down on Tuesday, weighed by expectations of an OPEC+ output hike in August and concerns of an economic slowdown driven by prospects of higher US tariffs.

Brent crude fell 30 cents, or 0.5 per cent, to $66.44 a barrel by 0430 GMT, while US West Texas Intermediate crude edged lower 33 cents, or 0.5 per cent, to $64.78 a barrel, according to Reuters.

"The market is now concerned that the OPEC+ alliance will continue with its accelerated rate of output increases," ANZ senior commodity strategist Daniel Hynes said in a note.

Four OPEC+ sources told Reuters last week that the group plans to raise output by 411,000 barrels per day in August, following similar hikes in May, June, and July.

If approved, this w...