As per the ATS sources, the two Yemenis, aged between 50 and 55, have been staying in Kausarbaug area of Kondhwa here with three of their relatives for the last one month.
"They have come here for medical treatment and have been living in a rented accommodation. ATS had kept a watch on these people. Today two men were brought to the ATS office for questioning and after five hours of questioning, they were released," said an official from ATS on the condition of anonymity.
"Generally people are picked up and questioned on the basis of specific information received and they are released after getting answers," he said, without revealing any details.
Few days back, ATS had arrested a 31-year-old man, a resident of Parbhani in central Maharashtra, for alleged ISIS links.