GAZA CITY — The Hamas rulers of Gaza and local smugglers Tuesday accused Egypt of flooding cross-border tunnels with sewage water in order to halt a thriving smuggling trade that has propped up the local economy for the past five years. Flooding the dozens of tunnels that run along the short Gaza-Egypt border was a rare act of tension between the Hamas government and their ideological parent, the Muslim Brotherhood, which now dominates Egypt's government. The Egyptian effort appears to be aimed at closing down the illegal routes to better control what is going in. It follows an Egyptian-brokered deal that eased Israeli restrictions on building material going into Gaza. Yousef Rizka, an adviser to the Hamas prime minister, urged Egypt to allow the tunnels to operate until restrictions on imports to Gaza are lifted. Israel and Egypt have restricted the movement of people and goods in and out of Gaza since the militant group Hamas seized power of the territory six years ago. Much of the blockade has been loosened over the years, but residents still rely on the tunnels to get vital goods that are otherwise difficult to obtain in Gaza, such as construction materials and cheap fuel. The tunnels have kept a modest construction boom flowing in Gaza that employs thousands of people, while an estimated 2,000 men and boys work in some 250 border tunnels. But the tunnels are also easy conduits for weapons and militants to pass in and out of Gaza and the nearby lawless Sinai desert peninsula. From Sinai, militants have launched attacks against Egyptian and Israeli forces. Smugglers said Egyptian military forces were digging water wells and pumping waste water toward the smuggling area for the past two days. — AP