When the shooting occurred at Dallas' ICE facility on Wednesday morning , there were dozens of people inside. CBS Texas talked with several witnesses who arrived at the field office for appointments on Wednesday morning and were waiting to be processed when the gunshots rang out.

Blanca Estela Jimenez Arevalo described it as a very tense and scary situation. She recalls hearing the gunshots but was confused as to where they were coming from.

Witnesses describe chaos, fear as Dallas ICE facility goes into lockdown

"As we were entering the room when we heard the gunshots… the cops that were inside started moving around, and that scared me because I said, 'What's going on?" said Arevalo.

Arevalo and several other witnesses say it was around 6:30 a.m. when they heard the gunshots.

"We h

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