BANGKOK (AP): A masked gunman walked into a shopping mall in central Thailand and opened fire, killing three people including a two-year-old, robbed a gold shop then escaped, police said on Friday (Jan 10).

CCTV footage from the Robinson mall in Lopburi province, about 145km north of Bangkok, shows the gunman walking to a counter around 8pm Thursday and shooting a seller and another victim before jumping on the counter and grabbing gold products.

The regional police commander, Lt Gen. Ampol Buaruppon, told reporters the man came into the mall alone and opened fire at a security guard who he came across and then started a shooting spree that killed three people and wounded another four.

"The robber was merciless. We are looking for him in every place. Please trust us, we will definitely get this man and bring him to justice," he said.

The parents of the two-year-old who died in the shooting posted a message on their Facebook page, saying "We love you very much. We are so sorry that we cannot protect you. Rest in peace our angel." - AP