Pakistan, Aug. 18 -- Global oil prices continued rising on Tuesday as Middle East tensions raised concerns over supplies through the Strait of Hormuz. Brent crude moved close to a three-week high amid growing uncertainty.

Brent crude futures increased by $0.16 to $91.03 per barrel. US West Texas Intermediate crude rose $0.53 to $85.03 per barrel. Both benchmarks remained elevated as traders monitored regional developments.

Read more: Oil prices rise as US-Iran tensions threaten supplies

According to international news reports, prospects for progress in US-Iran talks have weakened. Markets are also concerned about a potentially prolonged disruption to oil shipments through the Strait of Hormuz.

The waterway remains a critical route for...