St. Louis Cardinals fans might want to add a little bit more time to their travel plans if they're going to Busch Stadium Tuesday night.
The team has announced it has installed metal detectors at some entrances as the first step towards complying with a Major League Baseball requirement that the devices be installed at every gate of league parks in time for the 2015 season.
The first batch of metal detectors has been installed at Gate 4, which is the northwest entrance of the ballpark on Clark Street. Fans will have to empty their pockets of anything that contains metal, including car keys and cell phones, and walk through the scanners before they're allowed to enter.
Other gates at the stadium have been using hand-held metal detector scanners this weekend, with ushers pulling random fans aside to check them for metal before they head into the ballpark.