The arrest of former United States Marine, Paul Whelan, resulted in a strong protest from US authorities on June 25th. Whelan has been in a Russian prison since December last year, after he was arrested on allegations of spying.
The US Embassy in Moscow has also requested an investigation into allegations of mistreatment in the pre-trial detention of Whelan. The embassy added that Russian authorities should guarantee Whelan's safety, said spokesperson Andrea Kalan.
Kelan took to Twitter and posted, "We have protested to the (foreign ministry) about Paul Whelan's mistreatment while in custody." "Welfare of US citizens abroad is our highest priority," she added. The protest is a response to having Whelan's latest appeal against arrest conditions rejected.
In response, the Russian ministry responded via its own account, suggesting that the US comment instead on the rights of incarcerated Russian citizens in the US.
Whelan was arrested in December after allegedly receiving state secrets. He maintains he was framed and that he had taken a USB drive from an acquaintance thinking it contained vacation photos. He made a direct plea to US President Donald Trump, saying, "Mr President—we cannot keep America great unless we aggressively protect and defend citizens wherever they are in the world," he said.