French President Francois Hollande has warned that France plans to "intensify" its campaign of airstrikes against Islamic State in Syria.

He says he will be meeting with US and Russian Presidents in the coming days to discuss a united attack.

He also vowed to destroy Islamic State – and outlined specific measures.

Mr Hollande also paid tribute to the 129 victims – saying many of them had not yet reached 30.

President Hollande spoke of people living in France who were turning from delinquents into terrorists, and referred to the fact that on Friday French people killed French people.

Addressing the two chambers of parliament, Mr Hollande said he would increase spending on security measures and vowed: "We will eradicate terrorism".

He said 5,000 police jobs will be created within two years and there will be no job cuts in the military until 2016.

A statement of emergency was declared following the attacks and Mr Hollande said parliament will debate possibly extending it to three months. 

He was speaking several hours after his military jets dropped 20 bombs on the IS stronghold of Raqqa following Friday's coordinated attacks in Paris.

At least 129 people were killed in a series of shootings and bombings carried out by three teams of terrorists at six locations in the French capital.

French fighter planes carried out their biggest bombing raid in Syria - by dropping 20 bombs on the Islamic State stronghold of Raqqa in northern Syria.

The bombers hit a jihadi recruitment centre, training camp and arms depot run by the extremist group, according to the French defence ministry.

A spokesman described it as a "massive" attack and France's biggest to date in Syria.

More than 30 explosions were reportedly heard across the city, with IS militants restricting people's movements, making it difficult for human rights groups to collect information about any fatalities or injuries.

French foreign minister Laurent Fabius said France had the "legitimacy" to take action against IS after the terror attacks in Paris which left 132 people dead.

He said the decision to conduct airstrikes was a "political" one and that France had to be "present and active" following the atrocity.

The aerial raid was launched from air bases in United Arab Emirates and Jordan, and involved France's 12 fighter bombers based there.

IS fighters said they carried out the gun and bomb massacre - calling Paris "the capital of prostitution and obscenity".

While US President Barack Obama says putting large numbers of US troops on the ground in Syria and Iraq would be "a mistake".

.@POTUS on why putting large numbers of U.S. troops on the ground in Syria and Iraq would be a mistake. https://t.co/IylQ5jEj3r

— The White House (@WhiteHouse) November 16, 2015

The French military has posted this video of its campaign:

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