PATNA: There are reports of three Pakistani terrorists infiltrating Bihar. Bihar police headquarters has issued a high alert to all district police and has also sent them the names and photos of the terrorists, sources in the police headquarters said.According to sources, all of them reached Bihar via Nepal. Photos of Pakistani terrorists Hasnain, Adil, and Usman have been released and sent to all district police. Hasnain is from Rawalpindi, Adil from Umerkot, and Usman from Bahawalpur in Pakistan, sources said.It is suspected that the three terrorists might have entered Bihar from Nepal through Araria district. An investigation is currently underway.However, there has been no official confirmation / statement regarding this from the police headquarters. Based on intelligence inputs, there is a suspicion that the terrorists intended to carry out a major incident in Bihar.Sources said, all three terrorists arrived in Kathmandu in the second week of August and entered Bihar last week. There is also a concern that these terrorists might carry out an attack in some part of the country.