Here is what you need to know.The incident in which a van plowed into pedestrians near the Finsbury Park Mosque in North London on Sunday is being treated as a "terrorist attack," police said. One man died and 10 others were injured.Brexit negotiations officially begin.Brexit Minister David Davis will on Monday meet with chief EU negotiator Michel Barnier in Brusselsfor the first day of what he described as "historic" talks that will set Britain on the road to leaving the EU.Amazon is planning job cuts at Whole Foods. Bloomberg reported that the ecommerce giant is considering replacing cashiers with technology following its $13.7 billion acquisition of the organic-food grocer.US weapons maker Lockheed Martin is in the final stages of negotiating a deal worth more than $37 billion to sell a record 440 F-35 fighter jets.The buyersare 11 nations including the US, two people familiar with the talks told Reuters.President Donald Trump meets with tech CEOs. Chief executives from companies including Amazon and Apple will convene at the White House on Monday to discuss how to cut government IT costs and waste.Reddit is looking for more money. According to Bloomberg, the website is looking to raise around $150 million and is aiming for a $1.7 billion valuation.Oilis under pressure. Prices fell early on Monday before bouncing back, weighed down by high supplies despite an OPEC-led initiative to cut production to tighten the market.The front-month US West Texas Intermediate contract is up 0.42% at $45.16 per barrel.French President Emmanuel Macron's party has won a clear parliamentary majority, results show, weeks after his own presidential victory. The BBC reports that with nearly all votes counted, his La Rpublique en Marche, alongside its MoDem allies, won more than 300 seats in the 577-seat National Assembly.US stock futures are higher. S&P 500 futures are up 7 points, or 0.3%. The 10-year yield is down by less than one basis point at 2.151%.Economic data is light on Monday. Later this week, existing and new-home sales numbers cross, as well as FHFA house prices.Join the conversation about this storyNOW WATCH: An economist explains what could happen if Trump pulls the US out of NAFTA Click here to read full news..