WASHINGTON – Several times every day, at airports across the country, passengers are trying to walk through security with loaded guns in their carry-on bags, purses or pockets, even in a boot. And, more than a decade after 9/11 raised consciousness about airline security, it’s happening a lot more often.

In the first six months of this year, Transportation Security Administration screeners found 894 guns on passengers or in their carry-on bags, a 30 percent increase over the same period last year. The TSA set a record in May for the most guns seized in one week — 65 in all, 45 of them loaded and 15 with bullets in the chamber and ready to be fired. That was 30 percent more than the previous record of 50 guns, set just two weeks earlier.

Last year TSA found 1,549 firearms on passengers attempting to go through screening, up 17 percent from the year before.

In response to a request from The Associated Press, the agency provided figures on the number of firearm incidents in 2011 and 2012 for all U.S. airports, as well as the number of passengers screened at each airport. The AP analyzed the data, as well as weekly blog reports from the agency on intercepted guns from this year and last year.

Occasionally passengers stopped by TSA are people who are used to carrying guns because they work in law enforcement but that doesn’t appear to be the case most of the time.

TSA didn’t keep statistics on guns intercepted before 2011, but officials have noticed an upward trend in recent years, said spokesman David Castelveter.

TSA doesn’t believe these gun-toting passengers are terrorists, but the agency can’t explain why so many passengers try to board planes with guns, either, Castelveter said. The most common excuse offered by passengers is “I forgot it was there.”

“We don’t analyze the behavioral traits of people who carry weapons. We’re looking for terrorists,” he said. “But sometimes you have to scratch your head and say, ‘Why?”‘