  On the night of Oct 31, 2015 two bright Southern Taurid fireballs occurred
over Poland, being one of the most spectacular bolides of this shower in recent
years. The first fireball - PF311015a Okonek - was detected by six video
stations of Polish Fireball Network (PFN) and photographed by several
bystanders, allowing for precise determination of the trajectory and orbit of
the event. The PF311015a Okonek entered Earth's atmosphere with the velocity of
33.2 +\- 0.1 km/s and started to shine at height of 117.88 +\- 0.05 km. The
maximum brightness of -16.0 +\- 0.4 mag was reached at height of 82.5 +\- 0.1
km. The trajectory of the fireball ended at height of 60.2 +\- 0.2 km with
terminal velocity of 30.2 +\- 1.0 km/s.
  The second fireball - PF311015b Ostrowite - was detected by six video
stations of PFN. It started with velocity of 33.2 +\- 0.1 km/s at height of
108.05 +\- 0.02 km. The peak brightness of -14.8 +\- 0.5 mag was recorded at
height of 82.2 +\- 0.1 km. The terminal velocity was 31.8 +\- 0.5 km/s and was
observed at height of 57.86 +\- 0.03 km.
  The orbits of both fireballs are similar not only to orbits of Southern
Taurids and comet 2P/Encke, but even closer resemblance was noticed for orbits
of 2005 UR and 2005 TF50 asteroids. Especially the former object is interesting
because of its close flyby during spectacular Taurid maximum in 2005. We
carried out a further search to investigate the possible genetic relationship
of Okonek and Ostrowite fireballs with both asteroids, that are considered to
be associated with Taurid complex. Although, we could not have confirmed
unequivocally the relation between fireballs and these objects, we showed that
both asteroids could be associated, having the same origin in a disruption
process that separates them.
