APTOPIX GOP 2016 Trump

Pepper spray is deployed at protestors of Republican presidential hopeful Donald Trump at the Albuquerque Convention Center after the Trump rally in Albuquerque, N.M., Tuesday, May 24, 2016.

(Roberto E. Rosales/The Albuquerque Journal via AP)

Donald Trump's speech in Albuquerque New Mexico drew protests and demonstrations, much as the Republican presumptive nominee's appearances have done in other states during the primary season. But on Tuesday, police locked down the venue for a brief time after a clash between protesters and police ended in the deployment of smoke canisters and pepper spray.

Several reporters tweeted about the lockdown as it happened on Tuesday evening.

Glass doors shattered at Albuquerque convention center where Trump held his rally. Cops not letting reporters out. pic.twitter.com/vGvmXQIvjK — Jenna Johnson (@wpjenna) May 25, 2016

Police aren't letting Trump supporters leave ABQ rally thru main door. I *think* I see some kind of smoke outside. pic.twitter.com/o4bUBGaxZL — Kayla Epstein 📰 (@KaylaEpstein) May 25, 2016

It seems the lockdown was triggered, in part, by protesters lighting T-shirts on fire and throwing rocks at police.

Protesters are throwing burning t shirts at trump rally pic.twitter.com/rVbGmHsW6x — john r stanton (@dcbigjohn) May 25, 2016

Watch: Protesters throw rocks at police, officers respond by tossing smoke canisters, using pepper spray. pic.twitter.com/BEpSXb1XSh — Jacob Rascon (@KPRC2Jacob) May 25, 2016

And as the protest went on, the Albuquerque Police Department also sent out developments to dispel rumors of gunshots and to confirm that the only arrests came from the rally.

There is no confirmation that any gunshots were fired, contrary to reports. Possible damage to Convention Center Windows by pellet gun — Albuquerque Police (@ABQPOLICE) May 25, 2016

The smoke that has been seen is not tear gas, it's just smoke. We have not deployed tear gas at this time. — Albuquerque Police (@ABQPOLICE) May 25, 2016

Our #APD horses are back out on the streets helping ensure safety. pic.twitter.com/kdipc0aonU — Albuquerque Police (@ABQPOLICE) May 25, 2016

There were no reports of injuries as of 9:30 p.m. local time, BuzzFeed reported. By then, police had set up a perimeter.

Police have set up a perimeter across the street from the Albuquerque convention center. Things are much calmer now. Protesters dwindling — john r stanton (@dcbigjohn) May 25, 2016

But even as things began to calm inside the convention center, demonstrations continued elsewhere, even escalating.

Mounted police have lined up against the Trump protesters in ABQ. This is escalating. pic.twitter.com/1ASwfH2Z5D — Kayla Epstein 📰 (@KaylaEpstein) May 25, 2016

During Trump's campaign stop at the Lane Events Center in Eugene, earlier this month, police there said that a handful of assaults were reported during an otherwise peaceful demonstration.

--Eder Campuzano

503.221.4344

@edercampuzano

ecampuzano@oregonian.com