UPDATE, TUESDAY 6:06 AM PT: In the wake of Monday’s bombings at the Boston Marathon, I hear there are “a lot of conversations going on” at the BBC over security for its live coverage of the London Marathon on Sunday. Those talks will continue throughout the week. The network, which is the exclusive UK broadcaster for the event, released the following statement today: “The BBC will be covering the London Marathon. We take event safety very seriously and are liaising with the relevant authorities. Our thoughts are with those affected by the sad events in Boston.” Elsewhere in Europe, the Hamburg Marathon in Germany is also moving forward on Sunday. A spokesperson there tells me there are no changes planned for the three-plus hours of live coverage on NDR, a regional channel of public broadcaster ARD.

PREVIOUS: MONDAY PM: As of late Monday night UK time, the BBC has not made any adjustments to its live 5-hour London Marathon coverage scheduled for Sunday. The fatal explosions during the Boston Marathon today have led British authorities to review security while London Marathon chief executive Nick Bitel told BBC News that organizers would “definitely not be cancelling” the race, which is expected to draw 36,000 runners.  Meanwhile, the BBC on Wednesday will begin 3-hour live coverage of the funeral of former Prime Minister Margaret Thatcher. Scotland Yard officials and counter-terrorism experts have discussed whether to upgrade security for the global VIPs.