According to the Los Angeles Times,
Los Angeles police were investigating unconfirmed reports of shots fired on the USC campus, prompting university officials to urge people to shelter in place.
USC said the police activity was occurring around 610 Childs Way.
She did not disclose whether shot had been fired or provide further details.
Police swarmed the campus just after noon Monday. A police chopper was circling overhead and students sitting outside a campus food court have all been moved inside.
On social media, some students and employees said they were sheltering in place inside classrooms and offices.
Reports are still ongoing and updates will occur as soon as they come in.
Source: Los Angeles Times