Who is Tommy Robinson, far-right activist who drew 100,000 to London rally?

The massive anti-immigration protest- "Unite the Kingdom", led by far-right activist Tommy Robinson, has gained momentum in the United Kingdom on Saturday as an estimated 110,000 to 150,000 participants gathered in central London.

The crowd showed up with flags and banners supporting Tommy Robinson, who is one of Britain’s most influential far-right figures.

At least 25 people were arrested on Saturday after violent clashes erupted during the right-wing demonstrations, the London's Metropolitan Police ServicePolice ServicePolice Service said.