THE Social Democratic Liberal Party (SODELPA) and People's Democratic Party say the law must apply equally to all.
And they have called on the police to ensure justice prevails over the death of a robbery suspect while in police custody.
SODELPA leader Ro Teimumu Kepa said there was a need to end the culture of violence.
She called on religions and denominations to raise their voices in protest against the death.
"At this very moment, I am asking the government in the strongest possible terms, to put an immediate end to this brutality."
The Roko Tui Dreketi also called on the Prime Minister Rear Admiral (Ret) Voreqe Bainimarama to issue a statement condemning the death.
PDP leader Felix Anthony said: "While we acknowledge that these people were allegedly involved in criminal activity, we remind the police that there is a process in place and the law must be followed at all times."