Agartala, May 29 (IANS) At least 26 people were seriously injured, four of them critically, in an acid attack in Tripura, police said here Sunday. One person was arrested.

 
 Police arrested jeweller Ratan Sarkar who threw acid on a vegetable vendor and others Saturday night in North Tripura district's Kailashahar town, 175 km from here.
 
 The jeweller had a quarrel with the vendor over the use of space in front of his shop. Following the argument, he threw nitric acid on the vendor and on the on-lookers who had gathered near the shop, a police spokesman said.
 
 The injured were shifted to hospital, where the condition of four was stated to be critical.