THE HAGUE (Reuters) -Lawyers for detained former Philippine President Rodrigo Duterte say he suffers from significant cognitive deficiencies that affect his memory and daily functioning, documents made public by the International Criminal Court on Thursday showed.

Duterte, 80, was arrested and taken to The Hague in March on an arrest warrant that linked him to murders committed during his “war on drugs” where thousands of alleged narcotics peddlers and users were killed.

His lawyers have since then argued he is unfit to stand trial.

According to details from their August 18 defence request released on Thursday, the condition affects his executive functioning, orientation and his capacity for complex reasoning.

Duterte has maintained his arrest was unlawful and tantamount to kidnapping.

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