A rocket was fired on the Afghan capital of Kabul on Saturday as more than 600 delegates from Pakistan and Afghanistan held a third day of talks aimed at improving security and strengthening bilateral relations.
Interior Ministry officials say the rocket landed in an open area, several kilometers from a high security zone where the meeting was being held.
No damage or casualties have been reported.
The four-day peace conference, or grand jirga, focuses on specific issues dividing the two countries.
Many Afghans expressed hope that the conference will help reduce violence in both countries.
Pakistani President Pervez Musharraf is expected to attend the closing session on Sunday. A second conference is planned for Pakistan at a later date.