Three paint cans left on a platform triggered a brief bomb scare at Rome's main rail station on Monday.
The cans had been tied together with insulating tape and were found on Termini Station's platform 1.
Police at Termini evacuated passengers from the platform and a bomb disposal team discovered the cans contained animal feed.
It was the third bomb scare at Termini in less than two weeks.
On 13 October, platforms 7 to 12 were evacuated after security staff were alerted to a parcel left near platform 10 that was found to contain pots and pans.
A few minutes earlier the same day, a suitcase left outside a high-school in Termini's adjacent piazza Indipendenza was found to contain painting equipment.
Following a recent wave of jihadist attacks in France and Germany, Italy is on 'level two' terror alert, the highest possible in the absence of a direct attack.
Transportation hubs are considered to be among possible terrorist targets.