Three armed Palestinian groups in the Gaza Strip on Monday threatened to continue their attacks on Israel and said they have long-range missiles capable of reaching more Israeli towns and cities.

One of the groups belongs to Fatah, the ruling party headed by Palestinian Authority Chairman Mahmoud Abbas. The two others are the Popular Resistance Committees, an alliance of various armed groups, and al-Quds Brigades, the armed wing of Islamic Jihad.

PA officials in Ramallah expressed deep concern over the threats and said Israel was responsible for the latest cycle of violence...