80 people are dead and at least 260 wounded from an explosion in Kabul, Afghanistan that detonated on Saturday in the midst of a peaceful demonstration by members of Hazara, a Shiite minority group, CNN reports.

A state-associated Saudi news site reported an explosion went off outside a building overlooking the Prophet’s Mosque in Medina, according to the Associated Press.

An apparently empty bus exploded in Jerusalem on Monday, Haaretz reports, leaving 15 people nearby wounded. Two were in serious condition. The circumstances of the incident remain unclear.

A Paris attacks suspect has admitted to being the “man in the hat,” a figure seen on security footage alongside two suicide bombers at the Brussels airport.

Six people were arrested in a series of police raids carried out around Brussels late on Thursday, the Guardian reports, in connection with Tuesday’s bombings. Also on Thursday, two Belgian officials offered to resign, as evidence mounted that the country failed to adequately prepare for the attacks

Russia on Tuesday joined France in bombing ISIS targets in Syria after confirming for the first time that a jet crash over the Sinai province earlier this month was caused by a bomb.

French military planes carried out a series of airstrikes on ISIS strongholds on Sunday in the wake of the attacks on civilians in Paris. CNN reports that targets in Raqqa, Syria were hit by 20 bombs delivered by 12 planes.

According to reports, ISIS is claiming responsibility for a bomb that exploded in a Shiite mosque during Friday morning, killing at least 24 people and injuring dozens of others.

Nine people, including two children, have died in a car bombing in Benghazi, the second-largest city in Libya, and the site of the fall 2012 attacks on the American embassy.

Two Arabic speakers were taken off a plane in Boston today while authorities inspected a bag. Both were later released.

Yesterday, two bombs detonated at the finish line of the Boston Marathon, killing three and injuring more than 100 people. Here's everything we know about the bombing, its aftermath, and the hunt for the culprits.

Bored rich moron Pamela Geller is a big deal in the internet anti-Islam scene, thanks to her unreadable blog Atlas Shrugs. Norwegian terrorist Anders Behring Breivik is reputedly such a big fan that he gave her a few shout-outs in his manifesto! Which is why we're interested in an email she got in 2007 from an anonymous Norwegian who was "stockpiling weapons."

A bomb detonated today in a crowded subway station in the center of Minsk, killing at least 12 people and wounding over 120. The station was located next to the offices of Belarus's authoritarian president, Aleksandr G. Lukashenko. [CNN]

CNN via ITN: Security alert on a London bus near King's Cross, somewhere on Gray's Inn Road (a very busy area). Traffic has been stopped, the nearby tube station has been evacuated, and "a lot of police around the area."

A reader from across the pond gives us a glimpse at what will surely be the future of MTA security. Now it's going to take even longer to get to Queens.

More from London: A suspected suicide bomber at the Stockwell Tube station on the Northern Line has been shot dead by police officers. No word on whether or not he was planning a new attack or involved in yesterday's handiwork.

Since our trust in Matt and Katie and the Today gang is slowly waning, a reader in London emails with the local BBC reports:

More bad news from across the pond: It's being reported that three subways stations in London have been evacuated and there is possible some sort of bus incident on Hackney Road. Reports are beyond sketchy, but apparently there were gunshots heard on the platform of the Warren station (which, located in central London, is very close to the Kings Cross station where last week's trauma went down). One London outlet is reporting that a passenger has phoned in to say that some sort of "nail bomb" on went off on a platform, while another report claims that a passenger was wearing a backpack that may have exploded and then filled the train with smoke.