The district commissioner (DC) of Panjgur said a mortar shell landed on a vehicle, instantly killing one man inside and causing extensive damage nearby.
The DC added that a strong protest has been lodged with the Iranian border authorities and a flag meeting in this regard has been called on Sunday.
Last Sunday, five mortar shells fired from Iran landed in the Chaghai area of the province. No casualties were reported in the incident.
Last month, ten Iranian border guards were killed by militants said to be operating from Pakistan. Iran said that Jaishal Adl militants had shot the guards with long-range guns, fired from inside Pakistan.
Later, the head of the Iranian armed forces warned Islamabad that Tehran would hit bases inside Pakistan if the government does not confront militants who carry out cross-border attacks.
The situation was later resolved via dialogue and the rhetoric subsided.
Special coverage on China's Two Party Sessions by The Daily Mail - People's Daily