Islamabad, May 9: Pakistan Tehrik-e-Insaf chief Imran Khan will not be able to vote in Saturday's historic general elections because of injuries sustained in a dramatic fall at an election rally, doctors treating him said on Thursday.

Doctors at Shaukat Khanum Hospital here, where Khan, 60, was admitted after he suffered fractured vertebrae and a broken rib on Tuesday, said he needs to stay in bed for some more time.

The doctors said it would be "impossible" for Khan to travel to Mianwali town, where he is registered as a voter.

Shaukat Khanum Hospital chief executive Faisal Sultan too said Khan could not be discharged before the 11th May general election because of his injuries.

A decision on discharging Khan will be made only after conducting some more tests, Sultan said.

"The most important for a person with such injuries is that he should remain immobile," he said.

Doctors expect 60-year-old Khan to make a full recovery but are not sure how long he will have to remain in hospital.

The 11th May  general elections mark a historic milestone for Pakistan as one civilian government completes its term and prepares to hand off to another.

Karachi, May 8: In a freak accident, Pakistan Tehrik-e-Insaf chief Imran Khan sustained injuries including a fracture to the head when he fell off a forklift that was hoisting him on to a stage at an election meeting in Lahore on Tuesday.

One of Khan's bodyguards lost his balance and fell while the forklift was raising them to the makeshift stage atop an empty container.

The bodyguard then fell off the forklift, pulling Khan and two more bodyguards along with him, footage on television showed.

The 60-year-old Khan and his bodyguards were standing on a pile of wooden pallets that were not properly balanced.

He fell several feet to the ground. Footage on television showed a dazed Khan, blood streaming from a wound on his head, being carried to a vehicle by several supporters.

The cricketer-turned-politician was driven in a private vehicle from the site of the election meeting at Ghalib Market to Fazal Hospital in Liberty Market.

After a cut on Khan's head was stitched up, he was taken to his Shaukat Khanum Hospital.

After several tests, including a CT scan, Khan was admitted to an intensive care unit of Shaukat Khanum Hospital so that he could be monitored round the clock.

"He is perfectly alright and was laughing when I met him," caretaker Punjab Chief Minister Najam Sethi told the media after meeting Khan in hospital.

"He is fine and upbeat...The doctors said he is safe and not in any danger," Sethi said.

Sethi said Khan had suffered a "hairline fracture" of the skull while senior Pakistan Tehrik-e-Insaf leader Asad Umar said one of Khan's vertebrae was fractured.

"His movements will be restricted for three weeks and he will have to wear a brace," Umar told reporters.

Shaukat Khanum Hospital chief executive Faisal Sultan too said Khan was out of danger. Khan would remain in the hospital for a while and would be examined again on Wednesday, he said.

Party leaders acknowledged that Khan would not be able to head the party's campaign due to his injuries.

Campaigning for Pakistan's landmark general election will end on 9th May, two days ahead of the polling.

A large number of Khan's supporters gathered outside the Shaukat Khanum Hospital. Fans and supporters of Khan gathered at many places in Lahore and offered prayers for him.

Some workers of Khan's party claimed there was a "conspiracy" behind the incident.

President Asif Ali Zardari, caretaker Prime Minister Mir Hazar Khan Khoso, PML-N chief Nawaz Sharif and Muttahida Qaumi Movement head Altaf Hussain expressed concern at the incident and prayed for Khan's speedy recovery.

In a gesture of goodwill, Sharif asked PML-N workers to immediately halt media advertisements against Khan. Sharif also cancelled all election-related activities on Wednesday.