Three people are now reported to have died when a car bomb exploded outside a hotel housing election judges in Egypt's North Sinai.
Another 12 were wounded.
The blast, and another 10 minutes later, in the provincial capital of al-Arish came a day after the second round of a parliamentary election closed.
Security sources say a suicide bomber tried to drive a car bomb into the hotel before security forces opened fire on him, causing the car to explode.
There was no immediate claim of responsibility for the explosions, 42 kilometres west of the North Camp where many of New Zealand's 25 Sinai peacekeepers are based.
Less than three weeks ago, an Islamic State-affiliated group claimed responsibility for killing 224 people on a Russian tourist plane that took off from South Sinai.