Shocked neighbours have paid tribute to a "lovely" 84-year-old woman who died after teenage yobs hurled stones at her house, smashing a window.

The pensioner, named locally as Joyce Moulson, collapsed about 10 minutes after three youths attacked her home in Bradford, said West Yorkshire Police.

She was taken to Bradford Royal Infirmary but was pronounced dead soon after she arrived. The suspects are all believed to be about 13 years old.

Those living nearby described Mrs Moulson as "a lovely old lady who always had time for you".

A friend and close neighbour who saw her virtually every day, said: "She was helpful, chatty and always had time for you and a tale to tell."

The woman, who asked not to be named, added: "She was just a lovely old lady. I heard the kids outside last night and basically ignored it because I'm so used to it now."

The stone terraced cottage, in a busy shopping street, is cordoned off and a police community support officer guarded the scene. Nicola Taylor, 29, who lives on the other side of the road, said: "It's devastating. She must've been really, really scared. There's always a lot of kids hanging round on the corner. It's quite scary. We were really worried when we heard what had happened."

Another neighbour, Laura Schofield, 26, said: "I heard sirens last night but that's just a normal thing here."

Julie Taylor, who owns a shop near Mrs Moulson's house in Fair Road, said: "Youths are always jumping on the wall outside her house and in the garden. Some of them have no respect. I didn't know her personally but used to see her coming and going from her house. I'm shocked."

West Yorkshire Police believe the teenagers live locally and have appealed to the community to help trace them. One of the youths is described as white, around 13 years old, of large build with dark, shoulder-length curly hair. The two other males are believed to be of similar age and of slimmer build.