AMRITSAR, Nov. 28 -- Gurdaspur senior superintendent of police (SSP) Aditya said that police are carrying out a probe to ascertain 'Khalistan Liberation Army' claims of carrying out a 'grenade attack' outside the police station. The statement came after a mysterious 'blast' on Tuesday evening left four people injured. As per the injured, the blast occurred outside the city police station of Gurdaspur, a day before chief minister Bhagwant Mann was scheduled to visit the district to inaugurate a sugar mill. The police officials had initially said that a truck's tyre burst. But a social media post, from 'Khalistan Liberation Army' claimed the responsibility for the grenade attack. HT couldn't independently verify the veracity of the post. "The police are investigating all angles related to the incident, but added that it looks like some mischievous elements are it a grenade attack," a police official said. Gurdaspur SSP Aditya said that investigations are on. "The police are investigating the matter. We will be able to make a statement once we have the findings of the probe. We are also verifying the contents of a video related to the incident," he added. According to reports, the wife of a local BJP leader sustained splinter injuries, while her husband, who sustained an injury to his eye, has been referred to PGIMER, Chandigarh, for further treatment. According to Anu, one of the injured and an 'eyewitness' said that the incident took place at around 8.30 pm. "My husband and sister-in-law were also with me and got injured. I noticed that a flaming object fell on the ground, and it was followed by a big explosion. I felt something hit my head. My husband was hit in the eye by an object, and blood started oozing from his injury. He was taken to the hospital for the initial treatment and then referred to PGIMER, Chandigarh, for further treatment," Anu said. Anu added that she did not see any truck nearby at that moment. "I did not know what happened but felt small pieces of objects pierce my body," another victim, Sapna Sharma, said....