Pakistani police Sunday arrested more than 100 supporters of opposition politician Imran Khan who entered Islamabad days before a planned protest shutdown of the capital, the interior minister said.

Prime Minister Nawaz Sharif is under growing pressure from opposition parties, mainly Khan's Pakistan Tehreek-i-Insaf (PTI), over his children's offshore bank accounts which were revealed in the Panama Papers leak.
Khan, a former cricketing hero, has threatened to "lock down" Islamabad on Wednesday to force Sharif to accept an inquiry into the affair.
The new protest plan comes at a sensitive time for Sharif, with the Supreme Court due to start hearing a case about the Panama Papers revelations on Tuesday.
"About 450 people entered Islamabad today," Interior Minister Chaudhry Nisar Ali Khan told a press conference.
"Police intercepted them but most of them ran away, many leaving their cars behind. Police arrested more than 100 of them."
Officers seized seven Kalashnikov rifles, 21 rifle magazines, tear gas and seven bulletproof jackets, the minister said.
He said Khan's PTI planned to occupy the Pakistan Secretariat, an office complex housing government ministries.
"They want to occupy the Pakistan Secretariat and the plan is not to allow government employees to enter," he said.
The minister said that on Saturday night some 1,200 PTI activists tried to drive in convoy to Islamabad from the northwestern city of Peshawar. When police stopped them on the motorway they beat up officers but had to retreat when reinforcements arrived.
"The lockdown of the capital is not a crime against government, but a crime against the state. We are a nuclear power and what impression will it make before the world if a mob comes to the capital of the country to shut it down?" the minister said.
Imran Khan denied his activists had possessed weapons.
Police have cordoned off his residence and fired tear gas during clashes there with his supporters on Sunday, an AFP photographer said.
In summer 2014 Khan led a mass protest that lasted four months. He allied himself with populist cleric Tahir-ul-Qadri to stage a sit-in outside parliament calling for the government to resign over vote-rigging allegations.
Khan called off the protest in December 2014 after Taliban militants stormed an army-run school in Peshawar and killed 154 people, most of them children.

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