TEHRAN, Iran — Three Americans jailed in Iran for 10 months met with their mothers a second time today as Iranian authorities used their visit to underline their complaints about their own citizens detained by the United States.

The mothers are on a visit to Iran in hopes of securing the release of their children — Sarah Shourd, 31; her boyfriend, Shane Bauer, 27; and their friend Josh Fattal, 27, who have been accused by Iran of espionage and entering the country illegally after being detained on the porous border with Iraq last July.

Their relatives say the three were simply hiking in Iraq's scenic and largely peaceful mountainous northern Kurdish region.

The three were brought this afternoon to the high-rise Estaghlal hotel in Tehran and taken to the rooms where their mothers are staying for a private meeting, witnesses at the hotel said.

The hotel overlooks Evin Prison, where the trio have been held.

So far, Iranian authorities have given no indication that Shourd, Bauer and Fattal could be released.