Airstrike on B1 Bridge in Alborz province, Iran
DAY 33
US-IRAN CONFLICT

Iran's Tallest Bridge Destroyed:
8 Dead on Nature Day

US strikes hit the B1 Bridge in Alborz, a Tehran medical research center, and steel plants. Iran rejects a 15-point peace plan and denies requesting a ceasefire.

Published: April 3, 2026
Photo: Majid Asgaripour/WANA via Reuters
DAY 33 | B1 Bridge struck /// 8 killed, 95 wounded /// Iran rejects 15-point peace plan /// Trump claims ceasefire request /// Tehran denies /// US Embassy Baghdad security alert /// DAY 33 | B1 Bridge struck /// 8 killed, 95 wounded /// Iran rejects 15-point peace plan /// Trump claims ceasefire request /// Tehran denies /// US Embassy Baghdad security alert

Key Takeaways

  • B1 Bridge (Alborz) — Iran's tallest — struck: 8 killed, 95 wounded
  • Strike coincided with Nature Day; crowds near the bridge
  • Also hit: Tehran medical research center and steel plants
  • Iran rejects US 15-point peace plan delivered via Pakistan
  • Trump claims Iran requested ceasefire; Tehran flatly denies
  • Iran demands Lebanon be included in any agreement

B1 Bridge: Iran's Most Prominent Civilian Landmark Destroyed

0
Killed
0
Wounded

On April 2 (Day 33 of the conflict), US air forces struck the B1 Bridge in Alborz province — reported to be Iran's tallest bridge. According to Fox News, the strike killed at least 8 people and wounded 95 others.

The strike coincided with Iran's Nature Day holiday, when large crowds gather at public areas including the vicinity of the bridge. Targeting such a prominent civilian structure during a national holiday has drawn widespread international condemnation.

→ For 80 million Iranians, the B1 Bridge strike symbolizes war's destruction of everyday life and civilian infrastructure.

Targets struck on Day 33 of the US-Iran conflict

Photo: AFP

Other Day 33 Strike Targets

B1 Bridge (Alborz)
Civilian infrastructure8 killed, 95 wounded
Medical Research Center, Tehran
Medical/researchCasualties unconfirmed
Steel Plants
IndustrialUnder verification

Beyond the B1 Bridge, US airstrikes also targeted a medical research center in Tehran and steel manufacturing plants. The strike on a medical facility is particularly serious, as it may violate international humanitarian law protecting medical facilities during armed conflict.

Iranian state media reported the research center was conducting civilian medical projects, including cancer and vaccine research. The US has not issued an official statement regarding this specific target.

→ Striking medical facilities risks international investigation. Vietnam has called for civilian protection at UN forums.

Diplomatic Deadlock: Iran Rejects, Trump Claims

?
US (Trump)
Claims Iran requested ceasefire
X
Iran (Tehran)
Flatly denies, rejects request
~
Pakistan
Mediator delivering 15-point plan
!
Iran
Demands Lebanon be included in deal

President Trump claimed Iran had requested a ceasefire, but Tehran flatly denied this. According to CNBC, the US 15-point peace plan was delivered via Pakistan but rejected by Iran. Tehran demands Lebanon be included in any deal — a condition that complicates negotiations significantly.

Iran's demand to include Lebanon signals Tehran's intent to link this conflict to broader regional issues, including Hezbollah and Lebanese stability. This diplomatic strategy increases leverage but reduces the likelihood of a quick agreement.

→ Prolonged diplomatic deadlock keeps oil elevated, meaning living costs in Southeast Asia show no signs of easing.

US Embassy Baghdad security alert amid Iran conflict escalation

Photo: AP

Day 32 Recap: Iran Fires Ballistic Missiles at Gulf States

Just before the B1 Bridge strike, Day 32 (April 1) saw Iran launch a combination of ballistic missiles and drones at Gulf state military installations and energy infrastructure. According to Al Jazeera, this marked a significant escalation as Iran expanded targets to include American allies in the region.

The US Embassy in Baghdad immediately issued a security alert. Iran also threatened continued attacks on American allies if airstrikes do not stop. Gulf nations — including Saudi Arabia, UAE, and Qatar — raised their military alert levels to the highest tier.

→ Iran targeting US allies risks a region-wide conflict that could paralyze the entire Gulf.

Broader Context: 33 Days and No Exit in Sight

After 33 days of conflict, neither side shows willingness to back down. The US continues expanding airstrike targets to include civilian and industrial infrastructure. Tehran responds with missile strikes on US allies and maintains the Hormuz blockade. This cycle of violence shows no signs of abating.

Humanitarian organizations report worsening conditions: millions of Iranian civilians affected by power outages, medicine shortages, and transportation disruption. The United Nations has called on both sides for a humanitarian ceasefire to deliver aid supplies.

→ Each day of conflict adds ~$1-2/barrel to oil prices. 33 days in, Vietnam is paying ~15% more for oil imports than before the war.

US-Iran Conflict HubDay 32: Oil CrisisVietnam Fuel Prices

References

  1. Al Jazeera — Iran war live: Trump to address nation, Tehran denies seeking ceasefire (April 2, 2026)
  2. Fox News — Iran's tallest bridge collapses after reported US airstrikes, Iran threatens American allies (April 2, 2026)
  3. CNBC — Trump Iran war ceasefire claims and Tehran response (April 1, 2026)

Frequently Asked Questions

ZestLab analysis based on publicly available data from multiple sources. Not financial advice. Updated April 3, 2026.

AH
By An Hoang · International Affairs Correspondent
Published: April 3, 2026
geopolitics·iran war day 33 · iran bridge airstrike · iran ceasefire rejected · iran peace plan 2026
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iran war day 33iran bridge airstrikeiran ceasefire rejectediran peace plan 2026iran nature day attackalborz bridge collapse

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