JERSEY CITY, N.J. (CBSNewYork/AP) — Counselors were on hand at a northern New Jersey high school because a student athlete died after competing in a swim meet.

B.J. Giannone had finished a 200-yard freestyle relay when the senior from Saint Peter’s Prep High School collapsed Monday night.

Coach Ryan Heffernan told The Star-Ledger of Newark there was nothing out of the ordinary until the 18-year-old said he felt light-headed.

The cause of death is not known.

School president Robert Reiser says the student’s death was a “heartbreaking” loss.

(TM and Copyright 2011 CBS Radio Inc. and its relevant subsidiaries. CBS RADIO and EYE Logo TM and Copyright 2011 CBS Broadcasting Inc. Used under license. All Rights Reserved. This material may not be published, broadcast, rewritten, or redistributed. The Associated Press contributed to this report.)

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