President Trump Donald John TrumpBubba Wallace to be driver of Michael Jordan, Denny Hamlin NASCAR team Graham: GOP will confirm Trump's Supreme Court nominee before the election Southwest Airlines, unions call for six-month extension of government aid MORE on Friday revived his calls for a wall along the U.S.-Mexico border and a travel ban targeting certain countries after an attack on a mosque in Egypt left at least 235 people dead.

In a tweet announcing an upcoming phone call with Egyptian President Abdel Fattah el-Sisi, Trump lamented the terrorist attack on the al-Rawdah mosque in the northern Sinai Peninsula, and said that the U.S. would have to "get TOUGHER and SMARTER" in dealing with terrorism.

Will be calling the President of Egypt in a short while to discuss the tragic terrorist attack, with so much loss of life. We have to get TOUGHER AND SMARTER than ever before, and we will. Need the WALL, need the BAN! God bless the people of Egypt. — Donald J. Trump (@realDonaldTrump) November 24, 2017

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No group has yet claimed responsibility for the attack, though an Islamic State affiliate is known to operate in the area.

Trump has vowed since the beginning of his presidential campaign in 2015 to build a massive wall between the U.S. and Mexico as a way to prevent criminals from entering the U.S.

In his first days in office, Trump authorized construction of the wall, though has yet to obtain the funding from Congress needed for the massive project.

Trump has also repeatedly sought to bar individuals from certain countries from entering the U.S., though his executive orders on the matter have repeatedly faced hurdles in court.

Egypt is not among the countries listed on the ban.