Pakistan assured a South African delegation it would provide full security during their cricket team's tour of the country starting later this month.
South Africa are due to play two Tests and five one-day internationals in a month-long stay in the violence-hit country. They will open the tour with a warm-up three-day match in Karachi from September 27.
Security fears have surged in Pakistan after a spate of militant violence, including more than two dozen suicide attacks in the past two months. Around 270 people, most of them security officials, have been killed in these attacks.
The country's military ruler Pervez Musharraf is also struggling to keep his hold on power amid a deepening political crisis.
The home secretary of Sindh province Saturday briefed a two-member delegation from the Cricket South Africa (CSA) on the security situation in provincial capital Karachi, officials said.
"I have no doubts that Pakistan will provide us with the needed security and, God willing, everything will be alright," head of the delegation Goolam Raja told reporters.
Raja and CSA member Sean Gallaher are touring Pakistan to assess security arrangements
Pakistan Cricket Board (PCB) has changed the venues of two one-day matches against South Africa from Peshawar and Rawalpindi to Lahore and Karachi. But it denied the CSA had asked it to do so for security reasons.
Peshawar has been an unacceptable venue for foreign teams because of its close proximity to the war-ravaged Afghanistan.
Raja said a final report on security would be submitted to the CSA.
"It is difficult to say about our final assessments now but we will submit a report to CSA and hope everything will be in place for the tour," said Raja.
Australia's A team are currently touring Pakistan and have faced no security problems.
But security fears and political instability forced the International Hockey Federation to move the annual Champions Trophy tournament from Lahore where it was due to be held in December.
PCB director operations Zakir Khan said he was confident that decision would not affect the cricket tour.
"A professional security plan has been put in place for the South Africans and they were briefed. We hope everything will take place accordingly and we hope to have a good cricket series," said Khan.
The first of two Tests starts here from October 1 and will be followed by the second Test in Lahore and the five one-day matches.