Police have arrested a second man in relation to last Friday's "terrorist" incident near Buckingham Palace.
A 30-year old man was "arrested on suspicion of being involved in the commission, preparation or instigation of terrorism and he has been taken into custody," a Metropolitan Police statement said on Sunday.
"The arrest was carried out by officers from the Met's Counter Terrorism Command who are investigating the terrorist incident in Constitution Hill which resulted in three officers receiving minor injuries on Friday night," it said.
A police search continued on Sunday at an address in West London, where the second man was arrested, according to the authorities.
Police on Saturday said the incident near Buckingham Palace Friday involving a car driver stopping in front of a police van was being treated as a terrorist incident.
The Metropolitan Police said three police officers were slightly injured during the arrest of a man who reached for a four-foot (122-centimeter) sword when officers attempted to investigate a car that deliberately drove at a police van and stopped in front of it.
"As they challenged the driver, who was the only occupant in the car, he reached for what we now know to be a four-foot sword which was in the front passenger foot well," the police statement said.
The police continued their investigation into the incident and a warrant for the further detention of a 26-year-old man who was arrested on Friday night after the incident has been granted.
The terror threat level in the U.K. remains as severe.
More than 35 people lost their lives and dozens of others were injured in terrorist attacks in London and Manchester in 2017.
