Story highlights ISIS claims gains in battles in Libya

State news agency says Saudi blast happened after security approached a suspicious car

Wichita State University identified one victim as student Abduljaleel Alarbash

(CNN) For the second time in as many weeks, ISIS has claimed it's behind a deadly attack on a Shiite mosque in eastern Saudi Arabia.

The latest happened shortly after noon (5 a.m. ET) Friday outside the Imam Hussein mosque in Dammam, a coastal city about 70 kilometers (45 miles) from the Persian Gulf island nation of Bahrain, a Saudi source with detailed knowledge of the investigation said.

the Imam Ali mosque in the village of Qudayh, according to the source. The attacker -- dressed in traditional female clothing as a cover-up -- had been challenged by Shiites who had volunteered to search those going into the mosque in the wake of the previous week's attack onthe Imam Ali mosque in the village of Qudayh, according to the source.

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The bomber then set off explosives -- killing himself and three Shiite worshipers, the source said.

In a statement, Wichita State University identified one victim as Abduljaleel Alarbash, 22, an undergraduate student in electrical engineering who had returned to Saudi Arabia to get married. He was to return to the university in the fall.

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