SAN DIEGO -- People on the Mexican side of the border could be seen climbing the fence near Border Field State Park Tuesday afternoon after part of the Central American migrant caravan arrived in Tijuana.Several people scaled the fence and sat on top of it. A few jumped or crawled to openings in the fence onto U.S. soil but quickly ran back as Border Patrol agents approached.Several border agents were seen patrolling the area in trucks, 4-wheelers, a helicopter and on horses. Photo Gallery View Gallery (16 images) The U.S. Border Patrol sent a news release stating it believes some of the people at the fence are from the caravan that's been traveling through Mexico from Honduras.Related StoryLane closures begin at San Ysidro, Otay Mesa ports of entryOne man who happened to be on the north side of border while visiting the area described being entertained by the gathering."I was very surprised by how many people are here and how many different officials are here," Greg Boldner told FOX 5. "It's not normal to have this many resources tied up -- all these vehicles. (I) saw an armored car coming down the road. It just seemed more than just an average day."Video from the San Diego Union-Tribune shows the perspective from the Mexico side of the fence: Group Climbs U.S.-Mexico Border Fence> This video shows the view from the U.S. side:Border officials added razor wire to the top and bottom of the fence at the Border State Park that divides San Diego from Tijuana, Mexico overnight Tuesday into Wednesday morning, according to Department of Homeland Security spokeswoman Katie Waldman. She released a few photos showing the newly added protective measure.