South Korean PM Han Duck-soo promises a thorough investigation on Monday into the Halloween crush over the weekend that killed more than 150 people in the capital and plunged the country into a week of mourning.

The summit with Armenian Prime Minister Nikol Pashinyan and Azerbaijan's President Ilham Aliyev also comes eight months into Putin's Ukraine offensive that has made some of Russia's allies nervous.

Luiz Inacio Lula da Silva narrowly defeated President Jair Bolsonaro in a runoff election on Sunday that marked a stunning comeback for the leftist former president and the end of Brazil's most right-wing government in decades.

Soon after Sadaf Naeem's death, PTI Chairman and former Prime Minister Imran Khan announced halting the march for the day. He also sent his condolences to the family of the deceased and said that he would pray for the departed soul. 

Marriyum Aurangzeb, the the minister of information and broadcasting, ruled out any talks with "those who were giving calls of a bloody march".

Saifullah Paracha, a Pakistani national who spent over two decades being held in the US military jail at the Guantanamo Bay Naval Base, has returned to Pakistan.

Using purported leaked audio of Ali Amin Gandapur, Rana Sanaullah accused Imran Khan of plotting to create unrest in the capital under the guise of the long march.

While addressing PTI supporters on the second day of the long march, Imran Khan urged Chief of Army Staff General Bajwa to remove the officials and initiate an inquiry against them.

Russia said on Friday it had finished calling up reservists to fight in Ukraine, having drafted hundreds of thousands in a month and sending more than a quarter of them already to the battlefield.

Russia said on Saturday that the accelerated deployment of modernised U.S. B61 tactical nuclear weapons at NATO bases in Europe would lower the "nuclear threshold" and that Russia would take the move into account in its military planning.

Qatar has emptied apartment blocks housing thousands of foreign workers in the same areas in the centre of the capital Doha where visiting soccer fans will stay during the World Cup

PTI Chairman Imran Khan and Shah Mehmood Qureshi were also seen standing with them in the video. PTI leadership was targeted by opponents and critics following the video.