
Iran's Revolutionary Guards said on Friday they had seized a British-flagged tanker in the Strait of Hormuz for breaking international maritime rules as tensions mount in the highly sensitive waterway.

The Royal Navy has announced the HMS Duncan, a Type 45 destroyer, will join HMS Montrose which is due to go in for pre-planned maintenance while still deployed.

Britain on Thursday signalled its readiness to use military force if necessary to keep the Strait of Hormuz open, warning Iran not to miscalculate over the West's determination to prevent disruption to the key shipping route.