Several people detained - but not a lot of new details

Several arrests have been made as part of the ongoing investigation into the assassination of Andrey Karlov, Russia's ambassador to Turkey, according to Russian Foreign Ministry Spokeswoman Maria Zakharova.

During a press briefing earlier this week in Moscow, Zakharova noted that "The inquiry is being conducted in close cooperation with the Russian operative investigation group. Several people, including colleagues of police officer Mevlut Mert Altyntash who committed the crime, have been detained on suspicion of involvement in this act of terror."

She added that it would be premature to disclose more details about the ongoing investigation.

Karlov was shot in an Ankara art gallery by Turkish policeman Mevlut Mert Altyntash on December 20, 2016. The Kremlin denounced the murder as a provocation designed to derail the peace process in Syria and harm relations between Russia and Turkey.

In March, a 33-year-old Russian woman was arrested by Turkish authorities in connection with Karlov's assassination.

According to reports, the woman, known only as Yekaterina, was arrested in the Turkish capital of Ankara. At the time of her arrest she was allegedly working for an escort service that catered to 5 star hotels.

In April, the Russian Foreign Ministry declined to comment on the arrest, stating instead that information would be provided soon.