GAZA, Dec 11 (SPA) - Unidentified gunmen killed three sons of a Palestinian intelligence official loyal to President Mahmoud Abbas in Gaza on Monday, opening fire on a car dropping the children at school, police and hospital officials said. The attack, in which an adult bystander was also killed, came a day after gunmen opened fire at the interior minister's convoy in Gaza, Reuters reported. Interior Minister Saeed Seyam, a senior Hamas leader, was unharmed in that incident. Police said two other children were wounded in Monday's attack. The senior intelligence official, Colonel Baha Balousha, was not in the car when it was fired on.--SPA www.spa.gov.sa/410334