A Nigerian-born US doctor, Bennet Omalu has alleged that Democratic candidate at the forthcoming US Presidential might have been poisoned after she collapsed at the 9/11 memorial service on Sunday.

Bennet Omalu is well-known and respected for his works in chronic traumatic encephalopathy- a brain degenerative disease.

Omalu said Hillary Clinton might have been poisoned by rival, Donald Trump and Russian President, Vladimir Putin- as the former had publicly shown his admiration for the Russian leader.

Omalu on Twitter advised Hillary’s campaign team to “perform toxicologic analysis of Ms. Clinton’s blood.”

I must advice the Clinton campaign to perform toxicologic analysis of Ms. Clinton's blood. It is possible she is being poisoned.

— Bennet Omalu (@bennetomalu9168) September 12, 2016

I do not trust Mr. Putin and Mr. Trump. With those two all things are possible.

— Bennet Omalu (@bennetomalu9168) September 12, 2016

Putin had in the past been implicated in the poisoning death of Alexander Litvinenko, a former KGB operative, in London in 2006.

Azeez