Palestinian militants in Gaza fired a projectile at southern Israel on Saturday, the army said, the latest attack in the wake of the US unveiling its controversial peace plan.

The projectile activated an alert "for open areas only," according to the army, while a spokeswoman for the regional council in Shaar Hanegev, next to north-eastern Gaza, said it apparently hit an open field, causing no material damages or casualties. Palestinian attacks have increased after US President Donald Trump on January 28 released his vision for resolving the Israeli-Palestinian conflict - a plan firmly rejected by the Palestinian leadership in both the West Bank and Gaza.