As of 2020, on how many occasions has a Nobel Laureate been under arrest at the time of the award?

Question needs to be updated because there have been two more since; Ales Bialiatski in 2022 and Narges Mohammadi in 2023.

too bad Thoreau didn't win cause he was born too early tho he probably wldnt have accepted it

wow!! I was way wrong! Still in shock !!