One civilian was killed and another injured Thursday when a shell fell on their house in North Sinai’s Sheikh Zuweid City, the MENA state news agency reported.
The source of the shell remains unknown.
The victims were transferred to hospital and police were notified.
On Monday, two children were killed when another unidentified shell hit Sheikh Zuweid. In an earlier attack the same day, a police officer and two conscripts were killed in Rafah.
Egypt's army has been fighting a decade-long militant Islamist insurgency that has spiked since the ouster of Islamist president Mohamed Morsi in July 2013.
Hundreds of police and army personnel have been killed in attacks while the army has announced killing and arresting hundreds of "terror" suspects in retaliation.
In addition, military forces are engaged in creating a buffer zone on the Rafah-Gaza border and have evicted hundreds of families from their homes with government promises of compensation.
Reports of civilians getting caught up in the violence have recently increased.