Anti-terror officials are questioning five men arrested early Wednesday morning after they broke into a landmark building in Texas.

Police in the city of San Antonio say two of the men crawled through a window to get into the 120-year-old Bexar County Courthouse in the early morning hours. The third was arrested while waiting in a van parked in front of the building.

Officials say two other men were also arrested.

Three of the suspects are said to be in their 20s, and a local news report describes all five as French-Moroccan Muslims.

San Antonio radio station WOAI reports the five men entered the country United States with legal travel visas. They arrived from London's Heathrow Airport.

A San Antonio Sheriff's Department spokesman says he has no information to indicate the break-in is terror-related.

Other officials say they recovered “photographs of infrastructure” from the suspects' van. These included pictures of water systems, shopping malls and other public buildings.

A San Antonio police official said the men had travel documents and parking passes indicating they had visited places all across the United States.