hold somebody prisoner

He was only a few miles from where he'd been held prisoner.

They had been held prisoner in a house near here.

But we have to find out if any others from the company are held prisoner.

"How may I find the place where we hold prisoners?"

They find out that someone is being held prisoner in the house.

He was held prisoner for four years under bad conditions.

If he was held prisoner, we would be in time to save him.

What does this have to do with your being held prisoner?

The military camp held 160 men and was later used to hold prisoners of war.

The camp was first used in 1943 and held 31,000 prisoners.