A court in Moscow has upheld U.S.-Israeli tourist Naama Issachar’s seven-and-a-half year prison sentence on drugs charges Thursday in a case that has strained ties between Russia and Israel.

Naama Issachar, 25, was found guilty of drug possession and smuggling last month. Moscow airport authorities had found 9.6 grams of cannabis in Issachar’s luggage during her layover from New Delhi to Tel Aviv in April.

A Moscow District Court judge ruled to reject Issachar’s appeal Thursday evening. 

Issachar told the court that the authorities who detained her in April did not provide her with a translator or a lawyer, The Associated Press reported. In her last word, Issachar called the accusations “completely absurd” because she had no access to her luggage and asked the court to overturn her sentence, the Mediazona news website reported.

“I’ve been behind bars for nearly nine months in an unknown, alien country, deprived of the most basic rights and needs,” she was quoted as saying.

Russia in October had asked Israel to swap a suspected Russian hacker for Issachar. Israel, however, extradited the suspected hacker to the U.S. to face charges of credit card fraud.

“Despite the disappointment of the court verdict – I am not giving up,” Israeli Prime Minister Benjamin Netanyahu told Issachar’s mother, his office tweeted

“I will continue to do everything to bring Naama back home,” Netanyahu said.

President Vladimir Putin could personally decide Issachar’s fate, possibly after January, Bloomberg reported in November. He is scheduled to travel to Israel for talks with Netanyahu next month. 

Netanyahu is considering a 19th-century plot of land built for Russian pilgrims visiting Jerusalem as a “gift” to Putin in exchange for his help with releasing Issachar, The Jerusalem Post reported Friday.