TROY — Rensselaer Polytechnic Institute canceled all in-person instruction, moving classes online until the beginning of April, school officials said Tuesday.

The Troy campus will remain open with reduced services, but students are strongly urged not to return to campus, according to a memo RPI President Shirley Ann Jackson sent to students and staff.

"Now, more than ever, we will pull together and do what Rensselaer does best - collaborate, find solutions, and move forward. I know we are up to the task, and that we will emerge from this stronger than ever as a community," Jackson wrote.

RPI is suspending all university-sponsored events, including those organized by student clubs, as well as domestic and international travel until further notice. Sports competitions will continue, but without spectators.

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On Saturday, news of two COVID-19 cases in the Capital Region triggered RPI's "social distancing" protocol, including cancelation of any publicly accessible gatherings larger than 50.

RPI last week updated its travel restrictions and urged students and staff not to travel outside North America or on cruise ships over spring break, which began last weekend.

Students will hear from their respective faculty regarding specific course guidance. Those who choose to remain on campus will also receive instruction remotely.

Skidmore College in Saratoga Springs also announced this week that it would extend its spring break through March 22 and has cancelled a number of on- and off-campus events.