Smoke billows from damaged tanks belonging to Moammer Khaddafi forces in al-Wayfiyah, 35 km West of Benghazi after being hit by French warplanes. Britain has said its air and sea strikes on Libya had been "very successful" and stressed it was doing everything it could to avoid civilian casualties as it enforces a UN-sanctioned no-fly ,al-Wayfiyah -Libya 20/03/2011.