Violent clashes have erupted between Hamas and rival groups in several areas across Gaza, including an incident that culminated in an apparent public execution, as worries grow about the security situation following Israel’s withdrawal from parts of the territory.

A video this week captured Hamas fighters in Gaza executing Palestinian rivals as the militant group tries to assert that it is still the dominant force in the territory after two years of war with Israel.

A greatly weakened Hamas has sought to reassert itself in Gaza since a ceasefire took hold, killing at least 33 people in a crackdown on groups that have tested its grip and appearing to get a U.S. nod to temporarily police the shattered enclave.

President Donald Trump said Wednesday that he would consider allowing Israeli Prime Minister Benjamin Netanyahu to resume military action in Gaza if Hamas refuses to uphold its end of the ceasefire deal,

At least 27 people have been killed in one of the most violent internal confrontations since Israeli troops withdrew.

Hamas's operation in Gaza City over the weekend killed 32 people, targeting a rival clan. Despite the ceasefire with Israel, tensions remain high with multiple skirmishes reported over the past 10 days.

Social media videos analyzed by CNN show Hamas members carrying out execution-style killings on the streets of Gaza City, as the organization is re-asserting its power over the territory. CNN’s Oren Liebermann reports.

The release of the remains comes after Hamas faced widespread criticism and accusations of violating Trump’s peace deal.