A second person was arrested in connection with the London subway terrorist attack, Metropolitan Police have announced.
The man, 21, was arrested in Hounslow, west London, at around 11:50pm local time on Saturday, police said in a statement on Sunday.
“He was arrested under section 41 of the Terrorism Act and taken to a south London police station where he remains in custody,” police stated.
READ MORE: 18yo man arrested by police investigating Parsons Green bomb attack
The first suspect, 18, was arrested in the port area of Dover on Saturday morning. The man remains in custody, according to police.
According to the latest police data, 30 people were injured by an improvised explosive device which detonated on a crowded tube train on Friday morning. British authorities have said the incident is a terrorist attack. Islamic State (IS, formerly ISIS/ISIL) later claimed responsibility.
“In total, we know that 30 people have received treatment at hospital for injuries. We are incredibly grateful that no one was killed yesterday but my thoughts are with those people and everyone affected by this terrible and traumatic attack,” Senior National Coordinator for Counter Terrorism Policing Neil Basu said on Saturday.
The national threat level in the UK was raised to ‘critical’ from ‘severe’ following the attack. It “remains at critical for the time being but is under constant review,” according to Basu.
“For this period, military personnel will replace police officers on guard duties at certain protected sites that are not accessible to the public,” UK Prime Minister Theresa May said Friday, announcing the increased threat level.
The British capital has recently become a terrorist target, with two attacks preceding the Parsons Green blast. In June, eight people were killed and 48 others were injured as three assailants drove a rented van off the road at London Bridge.
In March, a car-ramming attack at Westminster Bridge claimed the lives of six people, including the attacker himself. Both assaults were claimed by Islamic State (IS, formerly ISIS/ISIL).
A wave of terrorist attacks has also spread across other European countries. One of the worst and latest happened in Barcelona, Spain, when a van mowed down pedestrians in the city’s main street, killing 15 and injuring more than 130.