Bhutto under `virtual house arrest` - spokeswoman
A senior police official said an order placing Bhutto under house arrest had been prepared.
Bhutto party spokeswoman, Sherry Rehman, said although Bhutto was not officially under house arrest police were blocking all movement in and out.
"It's virtual house arrest," she was quoted as saying by Reuters.
Army chief Musharraf imposed emergency rule last Saturday citing a hostile judiciary and rising militancy in the nuclear-armed U.S. ally.