BERLIN (AP) — Nobel literature laureate Gunter Grass is expected to return home within days after being admitted to hospital for what his secretary called a routine examination.

Grass was admitted to a Hamburg hospital Monday, less than two weeks after his poem criticizing Israel triggered a storm of criticism.

Grass’ secretary Hilke Ohsoling told German news agency DAPD Tuesday that the 84-year-old’s admission was previously planned.

“We expect that he will be back at home at the end of the week,” she said.

In “What Must Be Said,” published April 4, Grass criticized what he called Western hypocrisy over Israel’s nuclear program and labeled the country a threat to “already fragile world peace” over its stance regarding Iran.

Israel’s interior minister has since announced Grass barred from Israel.

Copyright 2012 The Associated Press.