A large explosion at a Valero oil refinery near the Texas Gulf coast shot plumes of smoke into the air and forced some nearby residents to shelter in place.
Trump's optimism about talks to end the Iran war has been tempered by denials from Tehran, and violence that continues to keep the Strait of Hormuz gridlocked.
Veracruz is one of a number of states that migrants have historically crossed to reach the U.S., and are preyed upon by cartels and other criminal groups.
