President Bush has condemned the bloody bomb attacks Monday in the Egyptian Red Sea resort of Dahab. At least 30 people were killed and 150 injured.
The blasts took place in a crowded tourist area filled with markets and restaurants.
President Bush says they show the true nature of terrorism.
"I strongly condemn the killings that took place, the innocent life lost in Egypt," said President Bush. "It is a heinous act against innocent civilians."
Word of the attacks reached the president while he was making a series of appearances in California and Nevada. He interrupted his remarks to a political group in Las Vegas to reflect on the tragedy.
"The United States sends our condolences to the families of those who were killed," he said. "We keep those who were injured in our thoughts and prayers."
At the time he spoke, no group had claimed responsibility for the attacks. But Mr. Bush stressed America is determined to bring all terrorists to justice.
"And I assure the enemy this: we will stay on the offense, we will not waver, we will not tire, we will bring you to justice for the sake of peace and humanity," stressed Mr. Bush.
Over the course of the last two years, almost 100 people have been killed in terrorist attacks on tourist resorts in the Sinai Peninsula. Just last July, suicide bombers in the resort town of Sharm el-Sheik killed at least 64 people.