UPDATED with service restored: Telecharge released the following statement that the service has been restored: “At approximately 6:00 AM this morning, the Telecharge.com website and related sites were taken offline due to a technical issue. Service was restored shortly before 11:30 AM. The Telecharge call center, box office terminals, and the API were all functional during this time.”

PREVIOUS EXCLUSIVE, 9:58 AM: With Broadway producers nervously anticipating this weekend’s audience-daunting triple threat of Hallowe’en, the World Series and the New York City Marathon, a fourth monkey wrench was thrown into the mix Thursday night when one of the Street’s two online ticketing services went down, according to infuriated agency execs.

Telecharge, owned by leading Broadway landlord the Shubert Organization, servicing the company’s 17 theaters as well as many others, went down Thursday night and was still dark early Friday morning, prompting an alert to clients, one of which told Deadline, “We have been informed that the Telecharge website went down sometime overnight.  We know that it’s been down since at least 6 AM. The box office can still sell, Telecharge phone sales are happening. The system is functioning, but the website is not.  We have asked our Telecharge contacts when they expect it to be back on its feet.  As soon as we have more information we will let you know.”

“This could not be at a worse time,” another Telecharge client told Deadline, “going into the toughest Broadway sales weekend of the year!” Among the shows that might be adversely affected are Matilda, at the Shubert Theatre and Andrew Lloyd Webber’s School Of Rock, at the Winter Garden.

Telecharge competes with Ticketmaster for online ticket sales. Ticketmaster represents the nine theaters controlled by the Nederlander Organization and recently scored a coup by signing Jujamcyn Theaters’ five Broadway houses away from Telecharge. Those theaters — the Al Hirschfeld, August Wilson, Walter Kerr, St. James and Eugene O’Neill — become part of the Ticketmaster operation in January. That means a loss in revenue to Telecharge of about $5 per ticket to The Book Of Mormon, Kinky Boots, Jersey Boys and Something Rotten!

No comment yet from Shubert execs involved with the Telechgarge operation.