Two 13-year-olds were last seen outside a school in Alstonville on Monday

Police have expressed concern for two 13-year-olds, missing from Alstonville. They were last seen outside a school yesterday.

Reginald Ayling and Laura Stephens, both aged 13, were last seen about 12pm yesterday (Monday, May 17), outside a school on Cawley Close, Alstonville

UPDATE 8.40pm: A boy and a girl, both aged 13, missing from the Alstonville area have been found.

The two were last seen about 12pm Monday, May 17, outside a school on Cawley Close, Alstonville.

They were reported missing to officers from Richmond Police District who commenced an investigation into their whereabouts.

About 6pm today (Wednesday, May 19), the two were located in Casino and reunited with their families.

Both are safe and well.

Police thank the media and the public for their assistance.

Original story: Police are appealing for public assistance to help locate a boy and a girl missing on the Northern Rivers.

Reginald Ayling and Laura Stephens, both aged 13, were last seen about 12pm yesterday (Monday, May 17), outside a school on Cawley Close, Alstonville.

Officers attached to Richmond Police District were alerted when the children could not be located, and an investigation into their whereabouts began.

There are concerns for their welfare due to the age of the children

Reginald was last seen wearing a blue hoodie, shorts and carrying a black backpack. He is described as caucasian appearance, dark brown curly hair, 170cm tall and thin build

Laura was last seen wearing a black hoodie, grey trackpants, boots and carrying a shoulder bag. She is described as caucasian appearance, light brown hair, 160cm tall and thin build.

Police urge anyone with information on the whereabouts of Reginald and Laura to contact Ballina Police Station or Crime Stoppers on 1800 333 000.

Anyone with information about this incident is urged to contact Crime Stoppers: 1800 333 000 or https://nsw.crimestoppers.com.au. Information is treated in strict confidence. The public is reminded not to report information via NSW Police social media pages.