President Barack Obama addressed the nation and observed a moment of silence this morning in honor of those who lost their lives on 9/11, while Lady Gaga, Queen Latifa and more have taken to Twitter to note the important 13-year anniversary.

President Obama Delivers 9/11 Speech At The Pentagon

President Obama walked out on the White House lawn with his wife, Michelle Obama and Vice President Joe Biden Thursday morning at 8:46 a.m. ET to observe a moment of silence before heading to the Pentagon, where Obama attended the September 11th Observance Ceremony.

“Together we pause and we pray and we give humble thanks – as families and as a nation – for the strength and the grace that from the depths of our despair has brought us up again, has revived us again, has given us strength to keep on,” Obama said at the Pentagon.

“We pray for the memory of all those taken from us – nearly 3,000 innocent souls. Our hearts still ache for the futures snatched away, the lives that might have been – the parents who would have known the joy of being grandparents, the fathers and mothers who would have known the pride of a child’s graduation, the sons and daughters who would have grown, maybe married and been blessed with children of their own. Those beautiful boys and girls just beginning to find their way who today would have been teenagers and young men and women looking ahead, imagining the mark they’d make on the world,” Obama continued.

Celebrities Pay Tribute On Twitter

Others, such as Taylor Swift, Chelsea Clinton, Lindsay Lohan, Donald Trump and more took to Twitter to remember September 11th.

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