The Let the Animals Live animal welfare organization is warning that a serial animal killer may be on the loose in Tel Aviv after 10 pet dogs and dozens of birds and cats were found dead in a public garden in Kiryat Shalem over the past week. According to a press release from the organization, the animals were all poisoned, apparently by phosphate, a substance not readily available to the general public. According to the organization, the dead dogs were all pets and not strays, and one was found in the upper branches of a bush, indicating that the person who reported finding the body might have been the poisoner. The organization said it had asked police to investigate the killings, which it regarded as "very grave." In the meantime, the organization said it was cautioning the public not to let pets or young children into the garden, located next to Rehov Asirei Zion.