Somerset continue to dominate day two of their LV= County Championship clash with Yorkshire.

A century from Marcus Trescothick helped them reach tea at Taunton on an imposing 272-2.

Somerset added 160 runs during the afternoon session, with Arul Suppiah (95) and Nick Compton (4) dismissed by Bradford-born Adil Rashid and Ajmal Shahzad respectively.

Trescothick was still at the crease on 156 not out, while Alex Barrow was unbeaten on nought at the interval.

It meant Somerset trailed the Tykes by just 86 first-innings runs.