Jaipur, July 24 -- Police from Rajasthan and Madhya Pradesh are carrying out a joint search operation in Rajasthan's Karauli district to trace a 400-year-old cannon stolen from Madhya Pradesh's historic Narwar Fort earlier this month, officials said. Investigators suspect the cannon may have been hidden in Gaonra Meena village in Karauli. More than 60 police personnel from the two states have been searching the area since Wednesday afternoon, said the officials. The operation, led by Sadar Hindon SHO Girraj Jatav, is focused on locations where recent excavations were reportedly carried out. Police suspect the stolen cannon may have been buried underground. "Based on intelligence inputs, teams have launched excavations at several suspected sites using JCB machines," an officer said on condition of anonymity. Karauli deputy superintendent of police (DSP) Munesh Meena said, "Madhya Pradesh Police team reached the district while following leads in the case and searched forests around Gaonra Meena. A metal detector team has also been brought in from Bharatpur to scan the area." The search follows the theft of the cannon from Narwar Fort in Shivpuri district on the night of July 15. Around 30 armed and masked men entered the fort through a difficult access route, held security personnel at gunpoint and escaped with the four-century-old cannon....