[Update: Handcuffed for selling churros — inside the world of illegal food vendors.]

When Gov. Andrew M. Cuomo ordered the deployment of 500 extra police officers to patrol New York City’s subway, he said they were needed to tackle a rise in crime.

The announcement set off criticism after several recent bystander videos showed physical altercations between uniformed officers and various people in the subway.

Then, on Friday, the “churro lady’’ was placed in handcuffs.

Cellphone video from a bystander captured New York Police Department officers detaining a woman who was selling churros — a fried dough snack — inside a Brooklyn subway station.

By Monday, as activists were protesting that encounter, another woman selling churros in a different Brooklyn train station was arrested, a police spokeswoman confirmed. A photo of that arrest was posted on Twitter by a commuter.