Washington, Oct. 21 -- The Trump administration is planning to collect DNA samples from asylum-seekers detained by immigration officials and will add the information to a massive FBI database used by law enforcement hunting for criminals, a Justice Department official said.

The Justice Department will publish an amended regulation Monday that would mandate DNA collection for almost all migrants who cross between ports of entry and are held even temporarily, according to the official. The official spoke to The Associated Press on condition of anonymity because the regulation had not yet been published.

The rule does not apply to legal permanent residents, or anyone entering the US legally. Children under 14 are exempt. It's not clear yet...