At least one Palestinian has been killed and two were wounded in an explosion in the Gaza Strip. A little-known Palestinian militant group said the attack was carried out by the Israeli army which, it says, fired a missile at a car carrying its fighters but missed its target and killed a bystander. The Israeli army has denied any involvement but said it carried out an air strike on gunmen it believed were trying to penetrate the fence around the Strip, and had hit one militant. The renewed violence comes just days ahead of Palestinian elections which could give the Islamic militant group Hamas its first role in parliament. Hamas has said it is committed to destroying Israel.