Moscow, Apr 13 (IANS): US-funded biological laboratories in Ukraine were engaged in developing components of biological weapons, Deputy Chairman of the Russian Security Council Dmitry Medvedev has said.

"It is impossible not to mention the activities conducted by the US and its allies near the Russian borders," Medvedev said at a government meeting.

Such activities were not aimed at searching for effective means of protection against dangerous diseases or cooperating with the international community, he stressed, Xinhua news agency reported.

"Work there was carried out behind closed doors. In fact, components of biological weapons were developed and pathogenic microorganisms were studied that has posed a threat to all mankind," Medvedev said.

"Therefore, we consider such activities as a whole absolutely unacceptable both in Ukraine and other countries surrounding us," he said, adding that such activities should be transparent and under control.