Locust swarms destroy crops in Kenya as East Africa faces its worst invasion in 25 years.<br /><br />The swarms of locusts have ravaged at least 11 of Kenya's 47 counties and have left a trail of destruction, posing a serious threat to local agriculture.<br /><br />According to the United Nations Food and Agriculture Organisation declared the infestation as Kenya's worst for 70 years.<br /><br />This footage was filmed on February 4.