Egypts interior ministry has not commented on Saturdays blast, which residents and media initially reported as probably the result of a faulty gas pipeline. Two security sources told Reuters that traces of explosives had been found at the scene.
"This bombing serves as a warning to the embassy of murderers, killers of women and children in the Muslim Rakhine State, and in solidarity with the sons of this weakened Muslim population," Hasm said in its statement.
It was the first time that Hasm, a group blamed for several attacks targeting judges and policemen around Cairo since last year, has claimed an attack on a civilian target.
"(We have used) utmost caution to ensure that there were no civilian casualties or innocent people (hurt) during the operation," Hasm said in the statement.
Myanmars government spokesman urged citizens abroad to be careful.
"Pls take care Myanmar nationals around the world," the spokesman, Zaw Htay, said on his Twitter feed.
The latest wave of violence in western Myanmars Rakhine State began on Aug. 25, when Rohingya insurgents attacked police posts and an army camp, killing about 12 people.
The Myanmar military response has sent more than 410,000 Rohingya Muslims fleeing to Bangladesh, rights monitors say is a campaign aimed at driving the Muslim population out of the majority-Buddhist country.
Egypt accuses Hasm of being a militant wing of the Muslim Brotherhood, an Islamist group it outlawed in 2013. The Muslim Brotherhood denies this.
Hundreds of Egyptian soldiers and police have been killed fighting an Islamist insurgency in Sinai that has gained pace since mid-2013, when General-turned-President Abdel Fattah al-Sisi ousted Mohamed Mursi of the Muslim Brotherhood after mass protests against his rule.
T.KR-AMQ
Editor: Ida Nurcahyani
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