KABUL (Agencies) President Asif Ali Zardari held talks with Afghan President Hamid Karzai on Tuesday amid heightened tension between the neighbours over cross-border attacks. Karzai and Zardari met in Kabul on Tuesday and spoke about the economic and security situation faced by the neighbours. The two leaders discussed the issue of border violations and attacks by the militants from the Afghan side into Pakistani territories at the Pak-Afghan border and retaliatory shelling of mortars by the Pakistani troops. Both the leaders agreed that they should not let anyone disrupt security in either country, Karzais palace said in a statement. Recently ties between two countries have been strained by cross-border shelling that Kabul says killed at least 42 civilians. Pakistan has repeatedly rejected the allegations of large-scale shelling, saying that only a few accidental rounds may have crossed the border when it pursued militants who had attacked its security forces. Pakistan recently lodged a protest with Kabul over cross-border attacks by militants, calling for stern action by Afghan and Nato-led foreign forces against the insurgents. On Tuesday, four Pakistani soldiers were killed and two others were wounded in the cross-border attack on a checkpost in South Waziristan. Zardari and Karzai reiterated to continue the ongoing fight against terrorism and extremism till the restoration of regional peace. The one-on-one meeting between the two leaders at the presidential palace, focused on a range of issues including bilateral relations and regional situation with specific reference to Afghanistans scenario after the start of US troops pullout. President Zardari who arrived here on a day-long visit to offer condolence over the death of younger brother of Hamid Karzai. Briefing the media, presidential spokesperson Farhatullah Babar said President Zardari told his Afghan counterpart that Pakistan was a strong supporter of Afghanistans peace and stability. He said Pakistan believed that the solution to Afghan problem rested with its people who must be given opportunity to decide about their future. President Zardari said it was the time to prioritise the well being of Afghan people who had been suffering the effects of war-ravaged economy for decades. He said Pakistan would act as a supportive neighbour to Afghanistan in its efforts to attain development, peace and prosperity. Karzai on the occasion raised the issue of held-up loaded Afghan containers carrying goods, including perishable items and food, under the Pak-Afghan Transit Trade Agreement (PATTA). Zardari assured the Afghan leader that the containers with food and perishable items would be immediately allowed transit through Pakistan while the commerce ministry would be asked to look into other issues. The Afghan President Hamid Karzai thanked President Zardari and his delegation for this gesture.