American forces seized an Iranian -flagged cargo ship after it tried to bypass a U.S. naval blockade in the Gulf of Oman, President Trump said Sunday. Why it matters: It's the first seizure and the first ship fired upon since the U.S. blockade went into effect last Sunday in response to Iran effectively holding the Strait or Hormuz hostage since the war began on Feb. 28. Trump said U.S. Marines disabled and seized the vessel, named the Touska, as U.S. and Iranian officials prepared to hold talks in Pakistan ahead of a looming deadline for the ceasefire ending. The latest: Oil prices jumped on Sunday evening following the fresh escalation of the U.S.-Iran conflict. Zoom in: Trump posted on Truth Social that the USS Spruance "gave them fair warning to stop. The Iranian crew refused to listen, so our Navy ship stopped them right in their tracks by blowing a hole in the engineroom." Spruance fired "several rounds from the destroyer's 5-inch MK 45 Gun into Touska's engine room," per a U.S.…