Jack Brooks led an impressive second morning with the ball for Yorkshire as they fight back against Lancashire at Emerald Headingley.
Lancashire, replying to 209, have advanced from 105-0 to 165-4 at lunch on day two, including three of the four wickets to fall going to Brooks.
The other fell to Ben Coad with the first ball of the day.
Alex Davies remains unbeaten on 86 with Josh Bohannon for company on five.
Coad had Karl Brown (43) caught behind down leg in the 36th over of the innings to give Yorkshire a flying start to the day.
Brooks then had Steven Croft caught at second slip, leaving the score at 145-2 in the 48th, before nipping one back at Liam Livingstone to bowl him four and a half overs later.
And when he trapped Dane Vilas lbw for a duck, Lancashire were 157-4 in the 56th.
Yorkshire have bowled a much more probing line this morning, putting Lancashire under the cosh.
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