Police investigating the murder of a woman in Derry have named her as Montserrat Martorell Elias. A murder investigation was launched after the body of the 65-year-old was found after a “horrific” attack and a fire at a flat in the city. Officers arrested a 28-year-old man on suspicion of murder and he was taken into custody for questioning. Firefighters attended the scene on Harvey Street after reports of a fire were received at 4.15am on Saturday. Elias, who was found in the bedroom of the ground-floor flat, was pronounced dead at the scene. Police said that she suffered a “horrific attack and sustained multiple injuries”. Det Ch Insp Anthony Kelly said: “Our investigation is moving at a fast pace, and I continue to appeal to anyone who may have any information to contact detectives on 101. “Ms Elias was sadly pronounced dead at the scene. From our inquiries so far, we can tell you that the victim suffered a horrific attack and sustained multiple injuries. “I am aware of online speculation which is extremely unhelpful and deeply distressing to Ms Elias’ family, and would ask people to refrain from engaging in this. “We will investigate any posts online which could potentially prejudice judicial proceedings.” In an earlier appeal, Kelly had said: “At this stage, we are keen to speak with a white man, aged in his 30s, who was seen in the area wearing a grey jacket with hood up, blue jeans, trainers and a light coloured shirt between 1am and 2am.”