WARSAW, Aug 24 (AFP) - A 39-year-old Dutch man was detained by police in southern Poland on Tuesday for taking photographs of a railway line, a viaduct and trains, the PAP news agency said.
The man, who said he loved the railways, was later freed, after being questionned by police in the region of Miechow.
His detention comes hot on the heels of that of a Frenchman, who was arrested in western Poland last week on suspicion of preparing a terror attack while taking pictures of a gas pumping station.
He is under investigation for "preparing actions which can endanger human life and destroy property", officials said.
As one of the leading supporters of the US-led invasion of Iraq, Poland has been ultra-sensitive about the possibility of a terror attack since receiving warnings from a group claiming links with Al-Qaeda that it faced attack unless it withdrew its 2,500 soldiers in Iraq.