A teenage boy has been charged after allegedly stabbing another boy at a Brisbane school, leaving him with life-threatening injuries.

Emergency services were called to the Islamic College of Brisbane in Karawatha, in Brisbane’s outer south, just before midday after reports of an altercation between two students.

Police will allege a 16-year-old boy stabbed a 17-year-old boy known to him with a small knife and fled on foot before police arrived.

The 17-year-old boy was taken to Princess Alexandra Hospital with life-threatening injuries and is now in a stable condition.

The 16-year-old was found in a vehicle on Gowan Road at Stretton.

He has been charged with an act intending to maim, disfigure or disable and unlawful possession of a weapon. He is due to appear in Richlands Childrens Court tomorrow.

An aerial view of police vehicles parked on a grassy verge.

A 17-year-old boy has been taken to hospital with life-threatening injuries. (ABC News)

Investigators are appealing to anyone with relevant information or CCTV or dashcam footage from the Karawatha area to come forward.

In an email to parents seen by the ABC, the school said students were being dismissed early as a “precautionary measure” due to “an incident on campus”.

“There is no ongoing risk to the College community. As the matter involves the privacy of individuals, we are unable to provide further details and appreciate your understanding and respect for the confidentiality of those involved,” the statement said.

“The safety and wellbeing of our students and staff remains our highest priority, and we appreciate your continued support.”

Parents milling outside a school

Parents were told students would be dismissed early on Tuesday after the incident. (ABC News: Luke Bowden)

Director of Education Operations at the Islamic College of Brisbane Tariq Ismail confirmed two students had been involved in an altercation and said the school was providing support to students and staff affected by the incident.

“The college is cooperating fully with Queensland Police while leading the investigation,” he said.

Mr Ismail requested the public refrain from sharing unconfirmed information about the incident online.

“We are aware that a significant amount of information is circulating online, much of which is inaccurate or unverified.

A man in a suit with a woman in a hijab behind him at a press conference.

Tariq Ismail urged the public not to spread unverified information about the incident. (ABC News)

“We respectfully ask that members of the public refrain from sharing or commenting on speculation, misinformation, as doing so might cause unnecessary distress to those affected and could compromise the integrity of an ongoing investigation.”

He said the school would continue to review the circumstances of the incident.

Minister for Education John-Paul Langbroek said in a statement his thoughts are with the victim, their friends and family.

“I have been in contact with the Islamic College of Brisbane to offer my support, while the police investigation continues.”

‘Really scared’

Ziana Ali was picking up her son and said she had received an email telling her there had been an incident and children were being dismissed early.

“I sped right here just to pick them up, because I’d had no idea what happened,” she said.

A woman in a hijab speaking to news reporters.

Ziana Ali says she only got further information about the incident from media reports. (ABC News)

“There was no way to contact [my son], I’m like, ‘What if this is my child?’

“I just had no idea. Really scared.”

The incident is the second alleged stabbing at a Queensland school in as many days.

A 15-year-old boy has been charged over an incident in Cairns on Monday in which another boy, also aged 15, was wounded at Trinity Bay State High.