A worshipper found an envelope containing 507 checks at the Western Wall in Jerusalem on Wednesday, the Associated Press reports.
According to the Jerusalem Post, the man took the checks to a lawyer in downtown Jerusalem. The lawyer then handed the checks over to the Jerusalem police's lost and found unit.
The checks, which weren't addressed to anyone, were each valued at about $1 million each; however, the checks are not expected to be cashable. Jerusalem police spokesman Shmuel Ben Ruby said that an investigation has begun to determine whether or not the checks are real.
Rabbi Shmuel Rabinovitch, who oversees the Western Wall, said most of the checks were from Nigeria, while Israeli police spokesman Micky Rosenfeld said there were also checks from the United States, Europe and Asia.
Rabbi Rabinovitch noted that he has found similar checks in charity boxes at the holy site, but added that they all bounced, and were mostly written by people from Africa.
He said he believes whomever sent the checks, "wanted to give all they had to the Creator of the universe."