General manager Marc Bergevin says associate coach Kirk Muller will serve as interim head coach while Julien is sidelined.
"Claude felt chest pains during the night", Bergevin said during a video conference. "He's presently there and is under [going] tests to determine exactly the nature of his condition".
Bergevin said Julien, 60, is being kept under observation at the hospital and that his condition has nothing to do with COVID-19.
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Montreal Canadiens head coach Claude Julien suffered chest problems after Wednesday night's game against the Philadelphia Flyers and was rushed to hospital. Bergevin and captain Shea Weber expressed confidence in Muller and the rest of the coaching staff to handle the hockey side of this in Julien's absence. "But after talking to Dr. Mulder (again) there is some good news early this afternoon".
"We beat the Pittsburgh Penguins and it's not the coaches that beat them, it's the players", Bergevin said. "I spoke to him briefly this morning as well and we're hoping for the best for him".
Overall, Julien has amassed a 658-440-10-139 record as a head coach in regular season games and a 66-53 record in post season games.
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Netanyahu said the agreement represented a " historic day" for his country. "Peace is the right path forward". The agreement gives Trump a rare diplomatic achievement ahead of the November U.S. presidential election.
"We don't expect him to be back during this series against the Flyers", Bergevin said about Julien.
Julien coached the Bruins from 2007-17 and won a Stanley Cup.
The Flyers lead their best-of-seven series 1-0.
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