Maria Sadaqat, 19, was attacked on Monday in Upper Dewal village of Murree hill resort. She was admitted to Pakistan Institute of Medical Sciences with 85 per cent burn injuries.
Before her death, Maria recorded her statement to the police and told them that she was pressed for marriage by the owner of a local private school where she used to teach.
He said the suspects have been booked for murder and some other sections of the Pakistan Penal Code.
"Anti-terrorism sections will only be included on the direction of the court," he said.
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Maria has alleged the five men burnt her alive because she had refused the marriage proposal of Master Shaukat's son.
Last month the gutted body of a young girl was found from a vehicle in Abbottabad. Police investigation into the case showed the 9th-grader was kidnapped from her house, sedated, murdered and set on fire after a decision of a local Jirga.
In April, a disabled 22-year-old girl from Swat was allegedly raped by a male nurse at PIMS.
Nearly 1,100 women were killed in Pakistan last year in so-called honour-killings, the country's independent Human Rights Commission says.
Campaigners say most "honour killings" are not reported in Pakistan.