Officials said two captains, a havildar and a jawan lost their lives during the encounter.
The gunfight started on Thursday after a joint team of police and security forces got an input about the presence of terrorists in that area.
The gunfight started after a joint team of police and security forces received an input about the presence of terrorists in that area.
Kochi Unit of the National Investigation Agency has also started collecting information about the incident.
The terrorists were attempting to infiltrate at Kupwara. The ceasefire violation in the Arnia sector came hours after the joint operation by police and army along the Line of Control in Machhil sector.
Belgium raised its terror alert to the highest level as a man in a video on social media claimed that he was the assailant and that he was from Islamic State.
In a Facebook post, the MLA called the Palestinian militant group Hamas 'terrorists', which invited criticism from several quarters.
The bench comprising Justices Siddharth Mridul and Amit Sharma upheld a trial court order convicting Khan of the murder of the police official.
The police are yet to identify the attackers, who fled on a motorcycle after the murder.
The encounter broke out in the early hours of Tuesday after security forces launched an anti-militancy operation following information about the presence of ultras in the district's Alshipora area.