Eleven Philadelphia-area passengers injured in a 2013 bus crash in Boston have sued the makers of the GPS devices allegedly used by the bus driver.

The bus, carrying 33 students and nine chaperones, was returning to Bucks County from a day at Harvard University when it struck an overpass. The group was from the Destined For a Dream Foundation in Bristol, a nonprofit organization for underprivileged youths.

The suit, filed Friday in Boston, claims the Tomtom and Garmin GPS devices put the bus driver on an inappropriate route "in disregard of a foreseeable and foreseen risk."

The suit also named as defendants the Bucks County bus driver and owner, the bus manufacturers, and the Massachusetts Department of Conservation and Recreation, which maintained the road and its signs.

- Paul Nussbaum