WARSAW, Poland (AP) — Police in central Poland are questioning three men suspected of offering for sale some 135,000 client records stolen from a major mobile phone network.

Spokeswoman for the police in Lodz, Joanna Kacka, said Tuesday the men were briefly detained last week in Lodz and Warsaw after one of them was ready to sell the data at 0.4 zlotys (0.1 euros) apiece. If convicted, they face up to two years in prison for data theft.

Kacka said the client names with phone and Polish personal ID numbers came from a major telecommunications firm and that some police procedures were carried out at the French-owned Orange network's offices. One of the men was a contractor for Orange.

Orange spokesman Wojciech Jabczynski had no comment.