ROME — Italy will approve new security measures on Tuesday targeting minors, politicians said, after days of unrest that have seen demonstrators clash with police, loot shops and vandalise property. Under the crackdown, law enforcers will be allowed to detain people under the age of 18 at police stations for 12 hours, even if they have not committed a crime, provided there is evidence they pose a danger, Deputy Prime Minister Matteo Salvini said. Rome is also expected to deploy an additional 500 army troops in Milan as authorities fear more unrest at demonstrations planned for Saturday. "We want to intervene quickly on young people," Salvini told RTL radio broadcaster ahead of a cabinet meeting called on Tuesday to approve the measures. Several hundred hooded protesters, many believed to be minors, set bins ablaze and looted shops in the centres of Milan and other cities over the weekend, after initially peaceful demonstrations over poor public services and rising costs. The disturbances echoed riots in neighbouring France, where hundreds of thousands of people took to the streets on Sa