Police said terrorism is not suspected.
The assailant was shot by police after the attack in the Paris suburb of Trappes.
Marie Laguerre was hit in the face by a man she told to 'shut up' after he allegedly exhibited lewd behaviour towards her.
Watch this performer stay above the crowd as she tightrope walks without safety equipment
Mr Faulker was part of the judging panel as more than 60 men bid for glory across six categories at the Paris championships.
Mamoudou Gassama, 22, will be honoured for his bravery by French president Emmanuel Macron
According to French media, the knife attack in central Paris left two dead including the assailant.
Roads, railway and subway stations have been closed, and museums have begun emergency measures to protect artworks as the water levels rise.
The French TV station BFM said that 4.7 million euros (£4.16m) worth of jewels were taken.
The prime minister's announcement came as international leaders gather in Paris on the second anniversary of the climate change plan.