A London truck driver was sentenced to eight months in prison and had his license suspended this week after causing a massive accident on a North London highway while staring at his phone.

According to Metro, Razvan Rusu injured two drivers and caused a huge pileup in March of 2015 when he plowed into slow-moving traffic on the M1 in Edgware, London. Dashcam footage from Rusu’s cab, which was released this week, shows him staring at his phone for more than a mile instead of watching the road ahead.