CNN

Obama is in Iowa Wednesday.

(CNN) - A man who allegedly had a knife in his car was arrested Wednesday outside an Ottumwa, Iowa hotel where Democratic presidential hopeful Barack Obama was staying.

Secret Service agents noticed the man before Obama's motorcade was to leave the hotel Wednesday morning, Ottumwa Police Lt. Tom McAndrew tells CNN.

Police and Secret Service agents questioned the man and took him into custody when it was discovered he did not have a driver’s license.

As the vehicle was being towed from the parking lot, police officers found a knife "concealed in the car," McAndrew said.

The man, identified as 24-year-old Davit Zakaryan of Cincinnati, Ohio, faces a weapons charge because the knife exceeded eight inches. There is no word why he was outside Obama’s hotel or why he was in the Ottumwa area.

– CNN Political Desk Managing Editor Steve Brusk