“We have seen these messages from Poland and are working with the Polish government to collect additional information,” RIA Novosti quotes Watson on Twitter.
She noted that at the moment she could not confirm the messages and any details.
Earlier, Polish Prime Minister Mateusz Morawiecki convened a security committee after reports of missiles falling on Polish territory.
Prior to this, the Polish radio station ZET, citing sources, stated that two people were killed on Polish territory allegedly as a result of falling rockets.