Devyani Khobragade. Pic: AP.

WASHINGTON (AP) — The U.S. State Department has expressed surprise over the dismissal of a case against an Indian diplomat whose arrest and strip-search in New York caused a rift in U.S.-Indian relations.

A federal judge ruled Wednesday that Devyani Khobragade had broad immunity from prosecution when she was indicted on charges of fraudulently obtaining a work visa for her housekeeper and lying to the government about the maid’s pay.

Spokeswoman Jen Psaki said Thursday the State Department was surprised by the dismissal of the indictment. She did not elaborate and referred further questions to the Justice Department.

The ruling left open the possibility prosecutors could bring a new indictment against Khobragade.

She left the U.S. in January and now works in New Delhi.