Demonstrators streamed into downtown Minneapolis on Tuesday, overflowing the plaza in front of the Federal Courts building and occupying 4th Street to protest President Donald Trump’s recent executive order placing temporary limits on immigration.

Thousands toted signs at the start of the late afternoon rally, which swelled to at least 5,000 by the time they began marching, according to a Minneapolis Police Department estimate.

The demonstration followed two related actions at Minneapolis-St. Paul International Airport over the weekend. On Sunday, about 1,500 people peacefully protested outside the main terminal for several hours.

About 50 people, many of them refugees, turned out Tuesday night to hear advice from legal experts on how to handle travel and other affairs in light of the just-announced travel ban.