BY TIM STELLOH, NBC News

(NBC News) - Bob Dylan, Nobel laureate, is missing.

That, at least, is what the academy that honored him with the most prestigious literature prize on the planet last week told Sweden's state-run radio SR on Monday.

The academy's permanent secretary, Sara Danius, said she had emailed and called Dylan's "closest collaborator" to ensure he gets his hefty award of $927,740, according to a translation published in The Guardian.

So far, she said, she's received "very friendly replies," according to The Guardian — but Dylan is still nowhere to be found.

Which leaves the academy in the odd position of giving up on tracking down their laureate.

"For now, that is certainly enough," Danius said, adding: "I am not at all worried. ... I think he will show up."