The American military has ordered 2,500 Marines and an amphibious assault ship to the Middle East, a US official said Friday, in a major addition of forces in the region after nearly two weeks of war with Iran. Hours later, President Donald Trump said US forces had "obliterated" military targets on Iran's Kharg Island - the primary terminal that handles Iran's oil exports - and warned that the island's oil infrastructure there could be next. A day earlier, the speaker of the Iranian parliament warned that such a strike would provoke a new level of retaliation. Meanwhile in the Iranian capital, a large explosion rocked a central square where thousands were gathered for an annual state-organised rally to support the Palestinians and call for Israel's demise. Israel had warned that it would target the area in central Tehran. There were no reports of casualties. But the decision to proceed with the mass demonstration attended by some senior government officials, and Israel's threat to .