Analyze the sentiment of this statement extracted from a financial news article. Provide your answer as either negative, positive, or neutral.
Text: In February the Elcoteq group sold its St Petersburg facility ; according to unconfirmed information the reason could have been supply problems because of the Russian customs service .
Answer:
In February the Elcoteq group sold its St Petersburg facility ; according to unconfirmed information the reason could have been supply problems because of the Russian customs service .