Sunday December 2, 2018 03:00 PM Arsenal scored three goals in the second half to come from behind to beat Tottenham 4-2 in a dramatic north London derby Written by By FRANK GRIFFITHS, Associated Press LONDON (AP) — Arsenal scored three goals in the second half to come from behind to beat Tottenham 4-2 in a dramatic north London derby on Sunday that saw clashes between players, fans lighting flares and throwing projectiles onto the field, two penalties and a red card. The Gunners extended their unbeaten run to 19 games and moved back into the Premier League’s top four. “It’s a very big victory,” Arsenal manager Unai Emery said. “We gave our supporters an important victory. It’s special for us too. But above all it’s three points.” Pierre-Emerick Aubameyang converted a penalty in the 10th minute to put the Gunners ahead at the Emirates Stadium. A Tottenham supporter was arrested for throwing a banana skin onto the field after Aubameyang scored and celebrated in front of away fans. Arsenal then dominated play for most of the first half before Spurs turned the game around with two goals in four minutes for a 2-1 halftime lead. But Aubameyang equalized in…