One victim was stabbed in the neck, abdomen and head.
There has not been a 35 percent drop in violent crime since the president took office.
A 25-year-old Nepali woman was found hanged.
Gayoom suffers from Benign Paroxysmal Positional Vertigo.
The presidential hopeful was accused of creating hatred towards police.
The dangerous acts include arson, police said.
Violent crime has swept the capital in recent months.
The MDP alleged the president's involvement in illegal fuel sales to North Korea.
Speakers and equipment were destroyed.
People do not intervene as the woman is mugged.
Ibrahim Agil was attacked near the Maldives Monetary Authority building in Malé’s northern waterfront.
The girl in the video went missing, but turned up at a police station after three days.
Ibrahim Agil was stabbed in the capital near military and police headquarters.
The victim was 18 years old.
The arrest followed a two-day manhunt.
"Opposition figures that return to the Maldives...we will slit their throats. We will definitely behead them,” said a ruling party supporter.
Videos on Facebook show about 10 young men fighting. Two can be seen brandishing weapons.