UNB, Bogra :A local Awami League leader who was injured in a clash during the first phase of UP election in Sariaknadi upazila died at a local clinic here early Monday.Abdul Mazid, 65, president of Kamalpur union unit of Awami League in the upazila and a resident of Rouhadah village, was injured in an attack by his rivals at Rouhadah Govt Primary School centre during the 1st phase UP election on March 22, said Waheduzzaman, officer-in-charge of Sariakandi Police Station.Later, he was taken to a clinic in the district town where he succumbed to his injuries in the early hours of Monday. With this, a total of four people were killed in election violence in the district.