In a vector-like extension of the minimal standard model with mirror f
ermions leptoquarks can be bound states of fermion-mirror-fermion pair
s held together by a new strong interaction at the TeV scale. The smal
l couplings of leptoquarks to light fermion pairs arise due to mixing.
The large Q(2) event excess at HERA and also the high E-T jet excess
at Tevatron can potentially be explained. (C) 1997 Elsevier Science B.
V.