Curfew violators, police clash in Baltimore [photos, Vines]

Some in the crowd are throwing glass bottles at the officers & the cops are responding by firing pepper pellets at them.

— ?? Coco Pazzo ?? (@CocoPazzo) April 29, 2015

@High4This20 they're trynna get everyone home & the crowd is throwing bottles

— Teadaaaaa ✨?? (@TrEATherRiight_) April 29, 2015

https://twitter.com/SecurityStrateg/status/593241868357349376

Numerous tweets indicate that Baltimore police are using smoke grenades or tear gas (or perhaps both) in an attempt to disperse the crowd.

Police using Pyrotechnic & Smoke in #Baltimore #FOX5DC LIVE -> http://t.co/NODUe5858m pic.twitter.com/9uT0O8SFDV pic.twitter.com/HT2ywXYVRF

— Tom Fitzgerald (@FitzFox5DC) April 29, 2015

https://twitter.com/WesleyLowery/status/593239654498832384

Tear gas or flash bangs fired. Protestors throwing cannisters back at police.

— WJZ | CBS Baltimore (@wjz) April 29, 2015

Explosions at Penn and North pic.twitter.com/WkVt0kXCCi

— Tim Mak (@timkmak) April 29, 2015

BREAKING: it appears smoke bombs thrown at crowd as police line advances. @cbsbaltimore #wjz

— PrattLibraryMeg (@PrattLibraryMeg) April 29, 2015

Smoke. https://t.co/QyL0Tu0znd

— deray (@deray) April 29, 2015

Smoke from firecrackers thrown at police line #Baltimore pic.twitter.com/yfjkLCI9Qd

— Megan Specia (@meganspecia) April 29, 2015

pic.twitter.com/dIbqd215Mj

— Justin Fenton (@justin_fenton) April 29, 2015

pic.twitter.com/m0S4dZ42L1

— Tim Mak (@timkmak) April 29, 2015

I've never seen this much smoke before. #BaltimoreUprising

— deray (@deray) April 29, 2015

One of the smoke grenades just fired by police in west Baltimore #freddiegray pic.twitter.com/NnB4Hz5C4v

— Jon Swaine (@jonswaine) April 29, 2015

https://twitter.com/WesleyLowery/status/593240411168079872

Flash bangs – smoke and pepper pellets as police try to enforce the curfew in #Baltimore live in 30 min #WCVB pic.twitter.com/as74q04YBr

— Phil Lipof NBC10 Boston (@philnbcboston) April 29, 2015

Officers are now deploying pepper balls at the aggressive crowd at North Ave / Pennsylvania Ave.

— Baltimore Police (@BaltimorePolice) April 29, 2015

Officers are now advancing on the group. They remain aggressive and disorderly.

— Baltimore Police (@BaltimorePolice) April 29, 2015

Editor’s note: This post has been updated with additional tweets.