ROME (Reuters) - Inter Milan coach Antonio Conte has received threatening letters and received a package containing a bullet by mail delivered to police, Italian media reported on Saturday.

Conte, a former Juventus coach, Chelsea and Italy, has been charged with unknowns, while authorities have imposed security precautions around his Milan residence and the club's headquarters.

After 12 rounds of Serie A this season, Inter Milan are second with 31 points, one point behind leaders Juventus and seven points ahead of Lazio and Cagliari.