Four women, a child and a man of the same family were killed in an explosion that occurred inside a house in Shawal area of North Waziristan, bordering Afghanistan.
Reports said the explosion took place when a mortar shell went off in Shawal, about 55 kilometres west of Miranshah, the main town in North Waziristan tribal district.
In a separate incident, an improvised explosive device (IED) planted by unknown miscreants went off in interior Peshawar city, killing one person and injuring two others.
The injured were shifted to Lady Reading Hospital Peshawar. No group has claimed responsibility for the attack so far, police said.
Half-kilogramme explosives were used in the blast, they said, adding that rescue teams reached the site and started rescue operation.