EXTRA security staff are on duty today at the hospital where a nurse was stabbed to death in a frenzied attack.
Cheryl Moss, 33, was taking a mid-morning cigarette break at St George's Hospital in Hornchurch, Essex, when she was killed yesterday morning.
The attack is not thought to have been carried out by one of the patients at the hospital and police said there were "no obvious suspects". Instead a random attack by a stranger is suspected.
Mrs Moss was married with no children and lived in Dagenham, Essex.
She was stabbed repeatedly as she wandered in an area at the rear of the hospital site, which opens on to Hornchurch Country Park.
She was found collapsed by her colleagues just after 11am and they immediately called for an ambulance. Paramedics pronounced her dead at the scene.
Her family was too distraught to speak about her death.
Detectives have launched a murder inquiry but there have been no arrests so far.
Det Supt Dick Langley said Mrs Moss had been the victim of a frenzied attack at the hospital where she had worked for more than 10 years.
"There are a number of stab wounds on her body."