Some drivers on Highway 101 in San Jose got more than they bargained for Wednesday morning.

Authorities received numerous calls that a naked man was observed riding his bicycle in lanes of traffic on both sides of the freeway between Story Road and Alum Rock Avenue, at times riding into the path of oncoming vehicles between 9 and 10 a.m., California Highway Patrol spokesman Ross Lee said. Multiple officers responded, but none were able to get eyes on the suspect.

“We were having many calls; he was moving around quite a bit,” Lee said, noting that there are areas along that mile-long section of 101 where the suspect could step over the median wall to the other side. “The last call that came in for us was that he was riding northbound on the southbound side.”

Lee said this is the first time in nine years with CHP that he’s heard of a naked man riding a bike on a freeway, but he said it’s not that uncommon to see naked pedestrians on 101 or clothed people riding bikes in lanes of traffic, due to the high homeless population that resides in the city. He said he wasn’t aware that the agency was investigating the incident, but he was aware of a video of the incident that had been posted to Instagram.

“There were no collisions, no crashes, nobody was hurt,” he said. “More than anything, I think people’s sensibilities were offended or they thought it was funny.”

He added, however, that what the man did was illegal. “If it became a recurring thing, now we’re going to have to take some definite enforcement action.”

Anyone with information about the incident is asked to call San Jose’s CHP office at 408-467-5400. Callers can choose to remain anonymous.