Bombers targeted a bus filled with South Korean Christians that killed four people Sunday on the Sinai Peninsula in Egypt close to the Israel border.

Three South Koreans and the Egyptian bus driver were killed in the blast.

The bus was carrying 31 parishioners from Jincheon Jungang Presbyterian Church, south of Seoul, and was attempting to travel from Egypt into Israel, Choe Gyu-seob, a pastor at the church, told reporters.

He said the church had been saving money for a long time to commemorate the 60th anniversary of its founding with a trip to biblical sites.

One parishioner was killed and 14 injured, leaving people at their home town in South Korea reeling with shock and in mourning Monday.

An itinerary provided to local media by the church, said the sightseers left South Korea on Monday last week and were to spend 12 days visiting Turkey, Egypt and Israel.

"My mother was a devout Christian," the dead church member's daughter, named Yoon, was quoted as saying by South Korea's Yonhap news agency. "I don't know how such a thing could happen. I don't know how to react to this."

There were 33 South Koreans on the bus along with an Egyptian guide and an Egyptian driver.

KOREAN GUIDES KILLED

One church member, two South Korean guides and the Egyptian driver died and 14 were injured, according to government and church officials.

On Sunday the bus had gone to an ancient monastery in Sinai and was about to enter Israel from the border town of Taba, Egyptian security officials said.

One parishioner was killed and many were seriously injured leaving people at their home town in South Korea reeling with shock and in mourning Monday.

An itinerary provided to local media by the church, said the sightseers left South Korea on Monday last week and were to spend 12 days visiting Turkey, Egypt and Israel.

"My mother was a devout Christian," the dead church member's daughter, named Yoon, was quoted as saying by South Korea's Yonhap news agency. "I don't know how such a thing could happen. I don't know how to react to this."

There were 33 South Koreans on the bus along with an Egyptian guide and an Egyptian driver.

One church member, two South Korean guides and the Egyptian driver died and 14 were injured, according to government and church officials.

On Sunday the bus had gone to an ancient monastery in Sinai and was about to enter Israel from the border town of Taba, Egyptian security officials said.

No one has claimed responsibility for the blast.

Reuters news agency reported that the attack revived memories of an Islamist uprising in the 1990s that often targeted tourists and took years for then-president Hosni Mubarak to crush.

"I hope this will be an isolated incident that will not recur," Egyptian Tourism Minister Hisham Zaazou told Reuters. "All the rest of the country is safe and secure, and what happened can happen anywhere in the world."

"The Muslim Brotherhood strongly condemns in the strongest possible terms the cowardly attack on a tourist bus," said the opposition group that was ousted from government in Egypt by the military last year said in a statement from its London office.

"It is sad to note that the military backed authorities have, once again, failed to uphold their duty of protection and care towards visitors and Egyptian citizens alike," it said.

The Presbyterian Church is the biggest Christian denomination in South Korea.

Of South Korea's 49 million people nearly 32 percent are Christian.

The Korea World Missions Association's 2013 report says that many South Koreans are active in overseas mission work, with more than 25,000 missionaries dispatched to 169 countries.