Boult knocks over Cook again

After choosing to bowl, there was early encouragement for the New Zealand bowlers © Getty Images

Joe Root was struck on the helmet by Southee... © Getty Images

Boult trapped Dawid Malan lbw first ball... © Getty Images

But Stokes became Boult's third wicket when he was caught down the leg side © Getty Images

Southee returned to complete a five-wicket haul... © Getty Images

Trent Boult struck in his second over, showing his delight after removing Alastair Cook © Getty Images

Cook was cleaned up by a full, swinging ball © Getty Images

...but he and Mark Stoneman guided England to 70 for 2 at lunch © Getty Images

...and Southee then chiseled out Stoneman for 35 © Getty Images

Stuart Broad fell cheaply but Bairstow reached his fifty as England counterattacked © Getty Images

...but Bairstow finished the day unbeaten on 97, having led England away from trouble © AFP

England moved steadily through the first hour but Tim Southee then had James Vince lbw © Getty Images

Root looked in good touch, but his dismissal by Southee for 37 precipitated a collapse © Getty Images

Ben Stokes helped rebuild again, putting on 57 with Jonny Bairstow © Getty Images

Mark Wood thrashed a maiden Test half-century as he and Bairstow added 95 together © Getty Images