Donald Trump's comments "directly led" to his supporters storming Congress and clashing with police, Home Secretary Priti Patel said, Report states, citing TASS.
Four people have died after a pro-Trump mob stormed the building to overturn the election result.
President Trump had urged protesters to march on the Capitol after making false claims of electoral fraud.
Ms. Patel said the president's words had fuelled the violence, and he "didn't do anything to de-escalate that."
"He should condemn everything that has taken place," Patel said on Sky News. "He made a statement yesterday, and it did very little to de-escalate the situation.... words of provocation are completely wrong," she added.
Earlier, Prime Minister Boris Johnson condemned the "disgraceful scenes" and called for a "peaceful and orderly transfer of power."