Good morning; this is John Mazerolle.

A ceasefire plan proposed by U.S. President Donald Trump and accepted by Israel and Iran today is off to a shaky start. Follow CBCNews.ca for the latest on the conflict throughout the day.

We'll also follow Prime Minister Mark Carney's trip to a NATO summit that promises to put more pressure on Canada to increase its defence spending.

And, in lighter news, a hockey stick owned by Toronto Maple Leaf Bill Barilko was expected to fetch up to $5,000 at auction. Read what it actually went for below.

BREAKING NEWS

Trump ceasefire in Israel-Iran war appears shaky in its early hours

Emergency workers check the damage to a building from an Iranian missile strike in Beersheba, Israel, today. (John Wessels/AFP/Getty Images)

The latest: A tentative truce proposed by U.S. President Donald Trump faltered as Israel said Iran had launched missiles into its airspace less than three hours after a ceasefire went into effect — and vowed to retaliate.

Iran's military denied firing on Israel, state media reported, but explosions boomed and sirens sounded across northern Israel midmorning. Earlier, both Israel and Iran had accepted the ceasefire plan to end their 12-day war.

Israeli Defence Minister Israel Katz called the missiles a violation of the ceasefire and instructed Israel's military to resume "the intense operations to attack Tehran and to destroy targets of the regime and terror infrastructure."

The shaky agreement was announced by Trump on Monday evening after Tehran launched a retaliatory limited missile attack on a U.S. military base in Qatar earlier that day. 
 

• What is the Strait of Hormuz and what could happen to oil prices if Iran shuts it down?
   
• What we know about the U.S. airbase in Qatar targeted by Iran.
   
• Hope and fear among Iranian Montrealers as they brace for what's next.

Canada recently promised to reach NATO's 2% spending target. This week, NATO discusses 5%

Secretary General Mark Rutte sits yesterday in the room where the NATO summit will be held at the World Forum in The Hague, Netherlands.

CBC in Europe: What was originally expected to be a broad, bold agenda at the annual NATO leaders' summit has been narrowed to perhaps a single catchphrase: Show me the money. 

Member nations will debate increasing the benchmark for defence spending from the current two per cent of the gross domestic product to a combined five per cent — 3.5 per cent for direct military funding and an additional 1.5 per cent for defence infrastructure. 

Canada arrives at the summit fresh off Carney's pledge to increase defence spending by $9.3 billion this year in order to meet the existing two per cent target. Going to five per cent is another matter entirely. 

Survivor recounts moment of Banff rockfall that killed his friend

Hamza Benhilal is shown in this handout photo provided by Khaled Elgamal. Elgamal, a survivor of the rockfall last week in Banff National Park, is remembering his 33-year-old friend Benhilal, who was killed. (Khaled Elgamal/The Canadian Press)

'Like my big brother': A survivor of a rockfall last week in Banff National Park is remembering his 33-year-old roommate, who didn't make it out alive from under the rubble, as a kind and generous friend. 

Khaled Elgamal, 28, says Hamza Benhilal, of Surrey, B.C., was one of two people who died after a slab of mountain gave way last Thursday, raining rock down on them and other hikers at Bow Glacier Falls, about 200 kilometres northwest of Calgary.

"He was my friend but also like my big brother," Elgamal said in an interview with The Canadian Press from a hospital bed in Calgary. 

Elgamal, a financial adviser, and Benhilal, an engineer, had just arrived in Banff for a vacation, and a hotel worker recommended they visit Bow Glacier Falls, as the site's parking lot is usually less crowded.

"We didn't even have it on our bucket list for that day," Elgamal said.

Venetians plan to take to the canals to disrupt Jeff Bezos's wedding

On June 12, a banner showing a giant red 'X' on Jeff Bezos's name is removed from the bell tower of San Giorgio Maggiore, a small island part of Venice where the billionaire will marry his fiancée, journalist Lauren Sanchez. Poster campaigns and stickers have spread throughout the city protesting the event. (Andrea Pattaro/AFP/Getty Images)

In case you missed it

• Prime Minister Mark Carney signed a strategic defence and security partnership with the European Union.
   
• Rescuers chopped, paddled and flew their way into a remote corner of Algonquin Park to reach a 13-year-old boy who was seriously injured.
   
• She waited 12 hours for Toronto police's non-emergency line. Then she was disconnected.
   
• How a coastal Maine town almost became part of Canada.

And finally...

Hockey stick of Maple Leaf legend Bill Barilko sells for $60K at auction

A photo from the Miller and Miller Auctions website shows Toronto Maple Leaf Bill Barilko on the ice and the details on a stick that sold at auction for $60,000. (Miller and Miller Auctions)

Toronto Maple Leaf Bill Barilko disappeared one summer in 1951. He was on a fishing trip, in a plane. The last goal he'd ever scored (in overtime) won the Leafs the Cup. They didn't win another till 1962, the year he was discovered.

Now, a game-issued hockey stick owned and signed by the legend who was immortalized in the Tragically Hip song Fifty Mission Cap, has sold for $60,000 at auction.

The stick is taped for game use in a way that matches Barilko's style, and puck marks and wear in the lower hand-grip area indicate the stick was likely used in a game. In other words, he worked it in to look like that.