MOSCOW, May 29 (RAPSI) – Searches are being conducted at Ukraine’s offices of the Russian Internet giant Yandex in Odessa and Kiev in relation to a treason investigation, the Ukrainian Security Service’s (SBU) spokesperson Elena Gitlyanskaya wrote on her Facebook page on Monday.

According to Gitlyanskaya, a criminal case has been opened under Article 111 of the Ukrainian Criminal Code (High treason).

More detailed information will be later published on the official website of SBU, the statement reads.

The Yandex press office confirmed that SBU officers are carrying out searches in the company’s offices. However, the company does not hold information on possible reasons for the raid.

Yandex is prepared to provide all required information to the Security Service of Ukraine, according to the company’s press service.

On May 16, Ukraine's President Petro Poroshenko signed an order on extension of sanctions against 1,228 Russian citizens and 468 companies.  In particular, Ukraine introduced restrictive measures against such Russian giants as Yandex, Kaspersky Lab, Vkontakte and Odnoklassniki social networks, Mail.ru and others.