US general refuses to rule out aliens after third suspicious flying object is shot down by the military over its airspace

• The US has shot down three objects flying over North America in as many days. 
• A top US general said he wasn't ruling out an extra-terrestrial origin for the objects. 
• It comes after the US shot down a spy balloon it alleged was sent by China. 

A top US Air Force general said that he was not ruling out the possibility that flying objects shot down over North America could have been aliens. 

General Glen VanHerck, the commander who oversees North American airspace, told reporters at a Pentagon briefing Sunday that he wasn't ruling out extra terrestrials or any other explanation for the objects, and was deferring to US intelligence.