NEW YORK — The shutdown on Broadway has been extended again — until at least early January.

Although an exact date for performances to resume has yet to be determined, Broadway producers are now offering refunds and exchanges for tickets purchased for shows through Jan. 3.

“The Broadway experience can be deeply personal but it is also, crucially, communal,” said Thomas Schumacher, chairman of the board of The Broadway League, which represents producers.

“The alchemy of 1,000 strangers bonding into a single audience fueling each performer on stage and behind the scenes will be possible again when Broadway theatres can safely host full houses,” he added. “The safety of our cast, crew, orchestra and audience is our highest priority and we look forward to returning to our stages only when it’s safe to do so.”

Broadway theaters abruptly closed on March 12, knocking out all shows — including 16 that were still scheduled to open — and postponing indefinitely the Tony Award schedule. Producers, citing health and city authorities, previously extended the shutdown to June 7 and then again to Sept. 6.

In London, producer Cameron Mackintosh has said his company’s West End productions of “Hamilton,” “The Phantom of the Opera,” “Mary Poppins” and “Les Miserables” won’t reopen until 2021 due to the coronavirus pandemic. The John F. Kennedy Center for the Performing Arts in Washington, D.C., has canceled most previously announced performances through the end of 2020.