Amanda Seyfried alerts TSA about 'accidently' carrying knife on plane via Twitter

Amanda Seyfried took to Twitter to alert the airport security after she unknowingly took a Swiss knife onboard, which was undetected by the officials.

The 'Lovelace' star took a photo of the knife and posted it on the social-networking site saying that it is scary how her Swiss Army knife wasn't detected through security, E! Online reported.

Seyfried had earlier thrown a fit in February after landing at Los Angeles International Airport and realizing that paparazzi and fans were waiting for her.