GAZA CITY, Gaza Strip, March 30, 2018 (AP) - The Palestinian Health Ministry says the death toll in Gaza has risen to twelve, with eleven Palestinians killed by Israeli army fire along the border with Israel and a farmer killed by pre-dawn tank fire in a separate incident. The ministry says at least 1,000 Palestinians were injured Friday by tear gas, live rounds and rubber-coated steel pellets fired by Israeli forces. It was the deadliest day in Gaza since last fall. The clashes erupted as thousands of Palestinians marched toward the border, including some who threw stones, drawing Israeli fire. The protests marked the launch of what Gaza's Hamas rulers envision as a 6-week-long campaign of mass sit-ins along the border, meant to spotlight the demand of uprooted Palestinians and their descendants to return to what is now Israel. It's also seen as a new attempt by Hamas to break a decade-old Gaza border blockade.