(CNN) -- The Syrian government has told the parents of a missing American journalist that it doesn't know where their son is, the man's father said Monday at a news conference in Beirut, Lebanon. Austin Tice last contacted his family on August 13 while in Syria reporting on the uprising there against the government of President Bashar al-Assad. He was reportedly preparing to leave Syria for Lebanon when he went missing, according to his family. Read more: Family working for journalist's release plans visit to Lebanon In October, a shaky video surfaced on YouTube showing a man believed to be Tice surrounded by armed men walking him up a hill.
@highlight
Austin Tice's parents urge anyone with leads to e-mail information@austintice.com
@highlight
Missing American journalist's parents say they'd go to Syria if necessary to find son
@highlight
They've already gone to Lebanon to seek his release
@highlight
Father: Syrian government told family that it doesn't know where missing journalist is
Syrian
Syria
Syria
Syria
Syrian
"We continued to work through our various channels, including the protecting power, to urge the @placeholder regime to be more forthcoming," she said.