Hamas released a statement on Saturday condemning the killing of 12 people in an attack on French satirical weekly Charlie Hebdo's offices - but was notably silent on the murder of four French Jews in a terrorist attack on Friday.
A statement in French said Hamas "condemns the attack against Charlie Hebdo magazine and insists on the fact that differences of opinion and thought cannot justify murder."
It also rejected Israeli Prime Minister Binyamin Netanyahu's comments, in which he compared the Paris attack to Hamas firing rockets from the Gaza Strip at civilians in Israel.
"Hamas condemns the desperate attempts by... Netanyahu to make a connection between our movement and the resistance of our people on the one hand and global terrorism on the other," it said.
The statement made no mention of Friday's attack on a Jewish supermarket by a third Islamist, in which four hostages were killed.
Palestinian Authority president Mahmoud Abbas called France's Francois Hollande to express condolences, Palestinian foreign minister Riyad al-Malki told AFP.
He said that Abbas assured the French president of "the solidarity of the Palestinian people and leadership with France after this terrorist attack." It was unclear whether the statement was also referring to the kosher supermarket attack.
Malki said Abbas would have liked to attend Sunday's rally in Paris but must stay home to manage the responses to brutal storms that have hammered the Middle East.
Malki said that a delegation of Palestinian Muslim and Christian clerics would pay a solidarity visit to France "in the coming days."
The Palestine Liberation Organisation called for a public rally to be held in Ramallah on Sunday "in solidarity with France against terrorism."
AFP contributed to this report.