Matthew Trevithik, the American student released from prison in Iran, returned on Saturday night to his home in the US.
Four other prisoners released on Saturday have yet to leave Iran, but will soon head to Switzerland.
Obama declares state of emergency in Michigan
US President Barack Obama declared a state of emergency in the State of Michigan and instructed federal authorities to help the US State in light of its polluted drinking water.
Lead was discovered in some Michigan drinking water earlier in January.