Note: The news conference can be watched live in the video player above.
Police in west suburban Aurora were expected to make an announcement Tuesday about a "major development" in a decades-long missing persons investigation.
Aurora police were scheduled to make the announcement alongside assisting agencies at a news conference at 3 p.m. from the Aurora police station, the department said in a release.
Further details on the announcement, including to which case it may pertain, were not immediately available.
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The news conference can be watched live in the video player above beginning at around 3 p.m.