A rocket-propelled grenade (RPG) was thrown at the third floor of Punjab Police's intelligence office in Mohali on Monday night, causing an explosion that shattered windows. As per sources, a rocket launcher was used to fire the RPG. The police have cordoned off the area around the office. In an official statement, the Mohali Police said, "A minor explosion was reported at the Punjab Police Intelligence Headquarters in Sector 77, SAS Nagar at around 7.45 pm. No damage has been reported. Senior officers are on the spot and investigation is being done. Forensic teams have been called.' Watch this episode for detailed information.