Mumbai, February 11 The Mumbai police have invoked the stringent Maharashtra Control of Organised Crime Act (MCOCA) against the accused involved in the firing at the residence of filmmaker Rohit Shetty here earlier this month, officials said on Wednesday. The Anti-Extortion Cell of the Mumbai Crime Branch has so far arrested five persons in connection with the firing at Shetty's building located in Juhu. As the custody of these accused is ending on Wednesday, they will be produced before the special MCOCA court in the evening, an official said. "Some of the accused are already involved in serious offences. The crime branch has invoked sections of the stringent MCOCA in the case," he said. At least five rounds were fired at the first floor of Shetty's nine-storey building in the Juhu area at 12.45 am on February 1. One bullet struck the glass of a gym inside the building. Police have so far arrested Aditya Gayaki (19), Siddharth Yenpure (20), Samarth Pomaji (18) and Swapnil Sakat (23) and Asaram Fasale. Lawrence Bishnoi gang member Shubham Lonkar is among the wanted accused in the case. He purportedly took responsibility for the firing at Shetty's residence. Lonkar is also wanted in the murder case of NCP leader Baba Siddique and the firing at the residence of Bollywood actor Salman Khan in Bandra. The police on Tuesday said Bollywood actor Ranveer Singh has received a threat through WhatsApp from unidentified persons, and they suspect that members of the Lawrence Bishnoi gang could be behind the threat for the purpose of extortion.