Multiple terrorist attacks in Paris have thrown the city into high alert; French President François Hollande has declared a nationwide state of emergency and closed the nation’s borders. Violent attacks have been reported near the country’s main sports stadium, where there was an explosion at the France-Germany soccer match President Hollande attended; shootings near the former headquarters of Charlie Hebdo; shootings near the Louvre; shootings at Les Halles shopping mall; and shootings near The Bataclan, where American rock band Eagles of Death Metal was playing.

At least 40 people have been reported killed so far, and there are an estimated 100 hostages at the Bataclan. One witness told a French TV station he heard rounds of automatic rifle fire and someone shouting “Allahu akbar!” at The Bataclan. Police in Paris are ordering everyone to stay inside to await further instructions, and locals are using the tag #porteouvre on Twitter to help people find shelter.

It’s currently unclear who the perpetrators are, and in a briefing at the White House tonight, President Obama declined to speculate. Here’s video of the president’s remarks, with a transcript below.

“We’ve seen an outrageous attempt to terrorize innocent civilians. This is an attack not just on Paris, not just on the people of France, but this is an attack on all of humanity and the universal values we that we share.

“We stand prepared and ready to provide whatever assistance that the government and the people of France need to respond. France is our oldest ally. French people have stood shoulder to shoulder with the U.S. time and again. And we want to be very clear that we stand together with them in the fight against terrorism and extremism.

“Paris itself represents the timeless values of human progress. Those who think that they can terrorize the people of France or the values that they stand for are wrong.

“We don’t yet know all the details of what has happened. We have been in contact with French officials to communicate our deepest condolences to the family’s of those who have been killed. We have offered our full support to them. The situation is still unfolding. I have chosen not to call President Hollande because my expectation is that he is very busy at the moment. I am confident that I’ll be in direct communication with him in the next few days, and we’ll be coordinating in any ways that they think are helpful.

“This is a heartbreaking situation and obviously those of us here in the U.S. know what it’s like, we’ve gone through these kinds of episodes ourselves.

“I’m sure that in the days ahead we’ll learn more about exactly what happened. I don’t want to speculate at this point in terms of who was responsible for this. It appears there may still be live activity. Until we know from French officials that the situation’s under control and we have more information about it, I don’t want to speculate.”