Terror Arrest-Philadelphia

Shown is the home of a woman who is accused of trying to join and martyr herself for the Islamic State group in Syria, Friday, April 3, 2015, in Philadelphia. Thirty-year-old Keonna Thomas appeared in federal court Friday afternoon just hours after her arrest on a charge of attempting to provide material support and resources to a foreign terrorist organization. A prosecutor says a search warrant executed March 27 at Thomas’ home prevented her from leaving the U.S. on a flight scheduled for March 29.(AP Photo/Matt Rourke)

PHILADELPHIA (AP) — A Philadelphia woman was arrested Friday on charges she tried to join and martyr herself for the Islamic State group, a day after two women in New York were charged with plotting to wage jihad by building a bomb and using it for a Boston Marathon-type attack.

Keonna Thomas, 30, was preparing to travel overseas to fight with the terror group and hoped to make it to Syria, authorities said.Instead, she was arrested at her home, which has three small U.S. flags adorning the porch.

Authorities said that she communicated with an Islamic State group fighter in Syria who asked if she wanted to be part of a martyrdom operation. She told the fighter that the opportunity “would be amazing,” according to the documents.

It’s unclear if she has a lawyer who could comment on the charges; a woman who answered the phone at her home declined to comment. Thomas is due to make an initial appearance in federal court Friday afternoon.

The women in the New York case are accused of plotting to wage violent jihad by building a homemade bomb and using it for an attack like the 2013 Boston Marathon bombings. They were ordered held without bail after a brief court appearance Thursday. The lawyer for one of them said his client will plead not guilty.

Thomas is charged with providing material aid to terrorists, one of the same charges filed in 2010 against another Pennsylvania woman, Colleen LaRose, known as Jihad Jane, and two co-defendants in a terror plot that prosecutors say also involved online messages and recruitment for overseas terror suspects.

Authorities have said foreign terrorists seek U.S. women because their Western looks and American passports make it easier for them to travel overseas.

Thomas’ posts in support of the Islamic State started in August 2013, when she reposted a Twitter photograph of a boy holding weapons, authorities said. She called herself Fatayat Al Khilafah and YoungLioness and tweeted posts such as “When you’re a mujahid, your death becomes a wedding,” according to the FBI affidavit filed in the case. A mujahid is one who engages in jihad.

Flags are posted on the home of a woman who is accused of trying to join and martyr herself for the Islamic State group in Syria, Friday, April 3, 2015, in Philadelphia. Thirty-year-old Keonna Thomas appeared in federal court Friday afternoon just hours after her arrest on a charge of attempting to provide material support and resources to a foreign terrorist organization. A prosecutor says a search warrant executed March 27 at Thomas’ home prevented her from leaving the U.S. on a flight scheduled for March 29.(AP Photo/Matt Rourke)

She soon began trying to raise money for the cause online and told a Somalia-based jihadi fighter from Minnesota that she soon hoped to have enough money to travel, authorities said.

She applied for a passport in February and bought a ticket to travel to Barcelona on March 29, the affidavit said. Authorities would not immediately say why she had not made the trip.

Jihad Jane got a 10-year term in January for agreeing to kill Swedish artist Lars Vilks, who drew a cartoon that had offended Muslims, while a Colorado woman, Jamie Paulin-Ramirez, is serving eight years. Both women began their involvement online but ultimately traveled to Ireland to join a terror cell. Paulin-Ramirez brought her young son and married an Algerian terror suspect there.

An immigrant teen from Pakistan who met LaRose online when he was an honors student in suburban Baltimore was sentenced to five years.

The teen, Mohammad Hassan Khalid, never left home, but he opened a box LaRose had sent him that contained a passport and money, and he sent some of the items to Ireland. He was arrested before he turned 18, becoming the rare juvenile in federal custody on a terrorism charge.

All three ultimately agreed to cooperate with authorities, shaving years off their sentences.

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Associated Press writer Sean Carlin contributed to this report.