Pele has been admitted to a hospital to undergo a "medical evaluation" after cancelling his appearance at an event in his museum.

The Albert Einstein hospital did not disclose why Pele was admitted, saying in a statement Wednesday evening only that he will "undergo exams."

The private Agencia Estado news service and other local media say the 74-year-old football great is suffering from stomach pain, but his condition was not serious.

The city of Santos earlier in the day said that Pele canceled his appearance at the Pele Museum in Santos because of "health reasons."

It wasn't clear if Pele would remain hospitalized.

No other details were immediately available.