The Taliban have threatened to attack Pakistani lawmakers and their families if they support a resumption of shipping NATO supplies through the country for troops in Afghanistan.
Pakistani Taliban spokesman Ahsanullah Ahsan said on March 25 that militants would attack the parliament building.
He also said militants would "publicly slaughter" drivers who transport NATO supplies.
Pakistani Senator Mohammad Adeel from the Awami National Party rejected the Taliban threats.
"I will obey the procedures of Pakistan's parliament because I am ruled by Pakistan's parliament [procedures] and Pakistan's constitution and Pakistan's government," he said."I will make decisions in the interests of Pakistan whether somebody likes it or not."
Pakistan closed its Afghan border crossings to the alliance in November in retaliation for NATO airstrikes
that killed 24 Pakistani soldiers.
Pakistan's parliament is scheduled to begin a debate on March 26 on a revised relationship with the United States.
With reporting by AP and Reuters