The U.S. Border Patrol arrested seven Mexican nationals near the mouth of the Tijuana River Wednesday evening in two separate incidents involving Jet Skis, said Border Patrol Public Information Officer Timothy Hamill.imperialbeach.patch.comAround 11 p.m., two Jet Skis were spotted a mile offshore near the mouth of the river."At about 11:25 p.m. one of the Jet Skis dropped off two subjects and went back to sea. One of the Jet Skis got stuck in the surf line with four people on it," he said.5 of the 6 people were immediately apprehended and one tried to swim back to Mexico, at which time lifeguards were called in to assist."Shortly later the person that was trying to swim came to shore and was apprehended," he said.        A few hours earlier around 7 p.m., a 42-year-old Mexican man was apprehended north of the mouth of the Tijuana River by Border Patrol agents after being ferried across the U.S.-Mexico border by a Jet Ski. It is not known if this same Jet Ski was used during the incident four hours later."The person that was driving the Jet Ski dropped him off and went back south to Mexico," Hamill said.No weapons or narcotics were recovered in either incident.From October 2011 to October 2012, there were 205 incidents involving panga boats, Jet Skis or other crafts attempting to illegally enter the United States from Mexico.107 incidents have occurred along the San Diego coast since last October, Hamill said.[fblike]