Investigators said they were unsure of the attacker’s motives. But clues pointed to an isolated and increasingly troubled life, and no accomplices.

At least three people were killed and six more injured according to Taiwan’s national news agency, after a man threw smoke grenades into a train station before attacking bystanders at a mall with a large knife.

The United States and Taiwan have announced an $11.1 billion arms package that if completed would be one of Washington’s biggest-ever military sales to the island.

The State Department announced the sales late Wednesday during a nationally televised address by President Trump, who made scant mention of foreign policy issues and did not speak about China or Taiwan.

Taiwan faces a new obstacle in securing U.S. weapons to deter a possible attack by Beijing: domestic political deadlock.

The U.S. announced a record $11 billion arms deal with Taiwan, surpassing previous sales as China warns of war risks in Taiwan Strait tensions.

Taiwan's President William Lai has called for a full public inquiry as he visited victims of Dec 19's deadly train station attack in Taipei. Four people  - including the suspect - died and 11 others were injured.

The opposition now wants to impeach President Lai Ching-te, calling him a "dictator" for refusing to respect the will of the ‍democratically elected legislature, though they lack the ​numbers to do so. They could instead pass a no-confidence vote in Premier Cho Jung-tai that might result in new elections.