Sources: Federal agents seize documentation, cash from Ron & Mike's Football Pool

One of the largest football survivor pools was shut down this week after federal agents seized documentation and the money the pool organizers collected, sources told ESPN.

Several participants in Ron & Mike's Football Pool said there were at least five NFL survivor pools this season with at least $2.5 million at stake to the winners. The participants spoke under the condition of anonymity and had access to the website from the beginning of the season.

"Please be advised that the Ron and Mike website has been forced to shut down at this time and is unlikely to open again," read a note sent to people who were still alive in the pools.

"We understand your frustration and anger at this time but closure of the pool is beyond our control. We apologize to those that are still alive in our various pools and we ask for your patience and understanding while we contemplate the next steps. Unfortunately at this time we cannot make any additional comments."

Sources said the organizers, who were running the pool for at least the past eight years, are Ron Kronengold and Mike Bernstein. Joe Conway, the attorney representing the men, confirmed that the website was voluntarily shut down after circumstances earlier in the week caused their business to be compromised. Conway said that neither he nor his clients have been furnished with any information from the government, other than a search warrant.

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