Worcester are not the only one of the Premiership's 13 clubs facing potential financial collapse.
Wasps, twice European champions, announced last week their intention to appoint administrators after failing to meet a May deadline to repay £35 million in bonds, which helped finance their relocation to Midlands city Coventry from London in 2014.
There are fears Worcester and Wasps represent the tip of an iceberg, with the collective debts of all Premiership clubs estimated at more than £500 million.
Speaking last week, Worcester rugby director Steve Diamond said: "We have been in this period of near-purgatory for a while now, and it is starting to come to a head.
"I don't know how it has got to this position. It is sad, and it is diabolical that it has been allowed to walk itself to the graveyard, virtually, and I never thought it would get to this position, but it has."
The club's Sixways Stadium is now closed -- staff were given until Monday afternoon to collect belongings -- with no indication when, or if, it will reopen.
Worcester are third from bottom of the Premiership table after one win from their opening three games. They beat struggling Newcastle 39-5 on Saturday.
Premiership Rugby confirmed Saturday's league match between Gloucester and Worcester has been postponed.