The Israeli military has intercepted a Gaza-bound aid ship, detaining 21 international activists and journalists and seizing all cargo, including baby formula, food, and medicine, according to the Freedom Flotilla Coalition.

President Donald Trump says Hamas is reluctant to release the remaining hostages amid Israel's increase in humanitarian aid efforts in Gaza on Sunday.

"The humanitarian catastrophe that we are witnessing in Gaza must end now," a joint statement from the three countries reads.

The U.N. says it’s unable to bring in enough aid to Gaza as it is hindered by Israeli restrictions and a breakdown of security.

Plus: Hundreds of people have been killed in recent weeks trying to reach food, mostly in mass shootings by Israeli soldiers.