CHICAGO | The Reverend Jesse Jackson has been released from a Chicago hospital, two days after he was admitted because of severe stomach pains.

A spokeswoman for Jackson's civil rights organization, Rainbow/PUSH Coalition, says Jackson was released from Northwestern Memorial Hospital shortly before noon on Friday.

Jackson underwent a series of tests that determined he was suffering from viral gastroenteritis -- an infection caused by a number of viruses.

Jackson's office later said the civil rights leader had been stricken by food poisoning and was severely dehydrated.

Rainbow/PUSH spokeswoman LaToya Porter says the 66-year-old Jackson was feeling much better and that he was planning to attend a Rainbow/PUSH event Saturday.