The Maharashtra Anti-Terrorism Squad (ATS) will now probe if there is any link between the arrested suspects and the letter bomb incidents that took place earlier in Ahmednagar and Pune.

ATS sources said the material Vaibhav Raut, 40, and Sharad Kalaskar, 25, held from Nalasopara, and Sudhanva Gondhalkar, 39, held from Pune, used along with the circuit hints at a link. The three, who are in ATS custody till August 18, will be questioned about it.