Oil prices have dropped to their lowest point in weeks after Iran reopened the Strait of Hormuz, despite US President Donald Trump expressing optimism about a resolution of the war. The closure of the strategic waterway has led to one of the worst energy shocks in history, driving up fuel prices and leading to emergency measures. However, Iran has now warned that it will continue to block transit through the key waterway as long as the US continues to enforce its blockade. This comes as Pakistani officials seek more talks between the US and Iran ahead of the April 22 ceasefire deadline.