Medium Large Transport; Low Wing; 2 Turbojet Eng
Flight Crew Air Transport Pilot (ATP)
Distraction
Inflight Event / Encounter Other / Unknown
Flight Crew Took Evasive Action
Environment - Non Weather Related
While on a visual approach to runway 28L into KLAN; we were experienced an unsafe condition resulting from reckless use of a large fireworks display.  The fireworks began immediately in front of the aircraft along the extended runway centerline; approximately 1-2 miles from the approach end of runway 28L.  After a couple of bursts; the display stopped.  ATC immediately issued an advisory; and the first officer and I had a quick discussion about the approach.  I advised the Pilot Flying to continue; and rejoin the runway centerline only after we pass the area; just to be sure we remained clear of additional fireworks.  While maneuvering; the display began again; with several large fireworks bursts at the aircraft 9 o'clock position.  The aircraft remained well clear; and in a safe condition; and the approach was safely conducted to a normal landing.  There was no aircraft damage; as the aircraft was well clear of any debris/incendiary; however; without prompt corrective action; or if we had been in the location of the display 10 seconds earlier; the aircraft would have been struck by the fireworks mortars; as they were detonating above our altitude.The unpredictable nature of fireworks displays is well known; however; this rarely occurs within close proximity to the airport.  Also; having a display EXACTLY along the runway extended centerline seemed careless misuse of fireworks.  Raising public awareness of these dangers seems warranted; along with requirements to restrict dangerous fireworks near airports.
The crew encountered a fireworks display on approach to KLAN 28L.