A lockdown at San Jose State University’s Sweeney Hall was lifted after police found no evidence of a gunman in the building.

“A thorough search of Sweeney Hall did not reveal anything. Sweeney Hall is open for business. Resume normal activity,” SJSU said in a tweet sent around 11:02 a.m. local time on its Twitter account.

Reports of a gunman on the campus of San Jose State University led the California school to advise students in Sweeney Hall to shelter in place as police investigate the situation.

SJSU still hadn’t updated its website as of 11:26 a.m. local time. A message read, “Police activity in Sweeney Hall. Reports of a person in building with gun; search under way. Shelter-in-place order for Sweeney; rest of campus open; classes open. More updates as information becomes available.”

Multiple media outlets reported that the lockdown was lifted. A student reported seeing a man with a gun in an SJSU building.