Italy's most powerful earthquake since 1980 has left more than 15,000 people homeless, according to the country's civil protection agency. No-one was killed in Sunday's quake but 20 people were injured and there is extensive damage in and around Norcia. The 6.6-magnitude quake struck near the central region where nearly 300 people were killed by a quake in August. Prime Minister Matteo Renzi is due to chair a meeting of his cabinet to discuss emergency reconstruction. The earthquake struck on Sunday morning, destroying buildings or rendering them structurally unsafe in several towns and villages in the mountainous central region. The civil protection agency said it was providing assistance to 15,000, with 10,000 accommodated in tents and converted sports halls. Thousands spent the night in their cars or under canvas.