WASHINGTON (AP) -- The State Department says a computer glitch has caused major delays in its passport and visa issuance operations at its embassies around the world, potentially leaving millions of people awaiting U.S. travel documents in the lurch.

Spokeswoman Marie Harf says the problem is worldwide and not specific to any country, document or visa category. She says it was first discovered on Saturday, has yet to be resolved and has stalled the issuance of U.S. passports, visas and reports of Americans born abroad.

Harf says the department is working urgently to correct "significant performance issues" with its Consular Consolidated Database and expects the system to be working soon.

It was not immediately clear how many people are affected, but an official says some 50,000 applicants were hit in one country alone.

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