the increasing number of people 后面动词用单数形式，中文意思是“日益增长的人数”

例如，日益增长的因战争逃难而偷渡人数正给当地政府造成巨大压力也带来巨大的安全隐患。

For example, the increasing number of people fleeing from the war is putting enormous pressure on local governments and posing huge security risks.