At least 13 people have been killed in a massive fire that broke out in a garment factory in Sahibabad Friday. Sahibabad is located on the outskirts of Delhi, in Uttar Pradesh’s Ghaziabad district. Workers were inside the factory when the fire started early morning. Naresh Mathur, an official of UP government , said another nine people were injured, four of them seriously, in the fire. The cause of the fire is being investigated, he added.