Five persons from Hyderabad were detained for moving around suspiciously in front of the American Centre here on Saturday.

“They have been detained for questioning,” Joint Commissioner of Police (Headquarters) Jawed Shamim said.

They told the police that they had gone there to enquire about visas, but they had fake passports, police sources said.

Terrorists shot dead five policemen in front of the American Centre in an early morning attack on January 22, 2001.