If you are held hostage in, say, Iran or Russia, do you continue to earn your salary?

I was just reading that an EU official has been held in Iran for 500 days (as of today).

And then there’s the Wall Street Journal reporter who was imprisoned in Russia in February or March, still being held.

And several more Americans (and a couple or Iranian-Americans) who have been in Iran prisons for years. Including one guy who they accuse of being a CIA operative.

If you’re help as a hostage, are you still on the payroll? When (if) you’re released, do you get your back pay? Are you earning vacation and sick leave?