Four Americans kidnapped in Mexico: What we know

Four Americans were traveling to Mexico for a medical procedure when their van was ambushed by suspected members of a Mexican cartel, with the Americans being kidnapped.

"All four Americans were placed in a vehicle and taken from the scene by armed men," the FBI, which is offering a $50,000 reward for the victims’ return and the arrest of the kidnappers, said in a statement. Michael Lee is a writer at Fox News. Follow him on Twitter @UAMichaelLee

Video from the scene shows a male victim being dragged across the pavement before he is loaded into the truck, while a female victim, who was able to walk, is forced into the bed of the same truck. Two more male victims, appearing possibly injured or dead, were then dragged toward the truck and loaded in the back.