At least one person was killed while three others were injured when firing broke out inside Karkardooma Court complex in Delhi.
According to reports, the incident took place at around 11:15 am when an under-trial was brought to court number 73.
The unidentified persons suspected to have been waiting to attack the under-trial, open fired at least 10 rounds and fled from the court premises, police said.
Injured persons, including a clerk and one police constable, were taken to the hospital after several police teams rushed to the spot, said DCP (East) B S Gurjar.
As per initial reports, the police official, who was escorting the under-trial, was hit by four bullets. Among others injured were the under-trial and a home guard posted at the court, the police said.