Luke 8:32-34
8:32 Now a large herd of pigs was feeding there on the hillside, and the demonic spirits begged Jesus to let them go into them. He gave them permission.
8:33 So the demons came out of the man and went into the pigs, and the herd of pigs rushed down the steep slope into the lake and drowned.
8:34 When the herdsmen saw what had happened, they ran off and spread the news in the town and countryside.