Milla Jovovich: Family Bomb Threat Launches Investigation

Someone threatened to bomb Milla Jovovich's mother and now cops are investigating.

Law enforcement tells TMZ, Mama Jovovich started getting annoying phone calls earlier this year ... from a man demanding to speak with Milla. Milla's mom said the calls usually happened at night, and sometimes twice a day, but the situation turned serious when he threatened to bomb her home.

To make things worse, the caller claims to be involved in a gang. According to a search warrant obtained by TMZ ... Milla's mom never clued her in about the calls.