Police Spokesman, Senior Deputy Inspector General (DIG) Ajith Rohana said that the telephone used by the male employee has also been seized and is being analysed.
He also said that two Police teams have been deployed to the town where the girl was initially residing and went to school.
Statements had also been recorded from her school Principal and Vice Principal.
The Police Spokesman said that further statements are to be recorded from the family and others linked to the girl.
The postmortem report on the girl had revealed that there are signs of chronic vaginal penetration.
The teen was admitted to the Colombo National Hospital with severe burn injuries on 3rd July and she had later succumbed to her injuries. (Colombo Gazette)