Three persons were injured when a group of 10 armed men fired on them near Patti, 30 km from Tarn Taran, today. The Patti Sadar police have registered a case under the Arms Act.The injured are Ravisher Singh of Talwandi Mohar Singh, Lakhbir Singh and Gurlal Singh of Bangla Rai village. They were going back to their villages from Patti when the accused intercepted them near Thakarpura village and opened firing on them. The victims managed to run away.